This Week in Gardening & Nature

Purple Milkweed

Plant of the Week: Butterfly magnet Milkweed. 22 Species native to Missouri. 24 Species native to Illinois. WARNING: Common Milkweed (Asclepias syriaca)  “grows readily from seed and spreads quickly by deep rhizomes. Because common milkweed can be weedy and difficult to remove, care should be used to establish the plant only in places where spread can be tolerated.”

Volunteer to help with St. Louis Tornado disaster relief and recovery. There is something for everyone to do. Personally recommend volunteering with Action St. Louis.

Bellefontaine Cemetery & Arboretum is still closed to the public due to Tornado damage and June 7th Beer Baron event canceled

Seed St. Louis Raised Bed Plant Spacing Chart

Plan your garden with  Seed St. Louis 2025 Planting Calendar.
-> Transplant This Week: Perennials, Trees, Basil, Eggplant, Melons, Peppers, Sweet Potatoes, Summer Squash, Tomatillo, Tomatoes
-> Sow Outdoors This Week: Basil, Beans, Cucumbers, Melons, Okra, Summer Squash, Tomatillo, Tomatoes

If you are just looking for St. Louis Area Plant and Seed Swaps and Sales, they are here. No additions this week, but some editing

Find a Native Plant/Seed vendor in Missouri, Illinois, Arkansas, Kansas,… (Grow Native)

St. Louis Master Gardeners Horticulture Answer Service: Monday through Thursday from 9 am. to 2:30 pm

River City Outdoors St. Louis now offers a Gear Lending Library for outdoor recreation equipment rentals to St. Louis City residents and St. Louis regional organizations that take children, families, and groups on outdoor trips.

Illinois School Teachers- March 2025 Application for 2026 Illinois Schoolyard Habitat Action Grant Program

Good Reads/Views/Listens —

Gardening by Month: June Tips, Tasks, Problems (Missouri Botanical Garden)

What the Peony Tells Us About War and Biodiversity (Wild Ones)

Bug n’ Garden Videos (University of Missouri Extension)

How to Make Seed Balls (Lady Bird Johnson Wildflowercenter)

Exodus of USDA veterinarians and others drives fears that U.S. farms are at risk (NPR)

Mountain chickadee chatter: Scientists are decoding the songbird’s complex calls (The Conversation)

Scientists discover why some hot peppers are total wild cards. It’s yet another reason you can’t always trust the Scoville scale. (Popular Science)

Tracking the sediment carried by the muddy Mississippi. New research shows that typically, less than 10% of land-building alluvium reaches the Bird’s Foot Delta region, the southernmost reach of the river, where it meets the Gulf (The Lens NOLA)

A Kansas county and two cities move water fight to federal court as drought threatens their future (Kansas Reflector)

In 2025, Tornado Alley has become almost everything east of the Rockies − and it’s been a violent year (The Conversation)

Deep Roots Kansas City Native Plant Gardening Videos

Seed St. Louis Videos: Variety Trials, Virtual Classes, Starting Seeds Indoors, Orchard Tips, Gardening Tips & How To, In the Community Garden, Youth Garden Activities & Tips, Teachers in the Garden Tutorials. I will continue promoting the online resources and activities of Seed St. Louis where appropriate. I will not, however, knowingly promote events at Maxine Clark’s school privatization campus named Delmar Divine. It is unfortunate that Seed St. Louis is now a tenant there.

Growing Vegetables Advice: Begin with a Plan, Seed Starting, Soil Management, Weed Management, Hardening Off Indoor Seedlings, Season Extension, Supporting Plants, Pest Management, Fertilizing Your Garden, Irrigation, Garden Tool Care, Container Gardens, More (University of Illinois Extension)

Shaw Nature Reserve Propagation Guide

Free Native Garden Designs @ Wild Ones. There’s one specific to St. Louis, one for Chicago, one for Denver, …

Native plant gardening in a pot. Missouri Botanical Garden has container designs for sun and shade.

Illinois Native Plants for the Home Landscape

Missouri Native Plant Top 10 Lists (Grow Native) Native Plants for Children, Poorly Drained Clay Soil, Sun, Shade, Half Sun & Half Shade, Under Utility Poles, Rain Gardens, Kitchen Gardens, Bees, Pollinators in Winter, Hummingbirds, Wildlife, Butterflies, More

2023 Plants of Merit – Annuals, Bulbs, Edibles, Perennials, Shrubs, Trees, Vines (Missouri Botanical Garden)

2023 Plants of Demerit – Bamboo, Big Leaf Hydrangea, Blueberry, Burning Bush, Chameleon Plant, Lavender, Pin Oak, Wintercreeper (Missouri Botanical Garden)

Gardening and Nature Events —

ONGOING

Volunteers Wanted. STL Neighborhood Foresters Neighborhood Tree Care Blitzes
June 7th Hyde Park Neighborhood. Register
June 14th Tower Grove East. Register
june 14th Benton Park West. Register
June 15th Shaw Neighborhood. Register
June 21st Old North Neighborhood. Register
June 22nd St. Louis Place. Register
June 28th Bevo Neighborhoood. Register

Now thru June 20th at Soulard Art Gallery: Art of Nature Exhibit

Now thru June 30th St. Louis Public Library art exhibit at Schlafly Library: Luisa Otero-Prada’s Wand of Heaven filled with vibrant flora and people. You may know Otero-Prada from her art in work in North City.

June 30th Application Deadline. Carondelet neighborhood group seeks artist to paint mural in community garden. The selected artist will receive $2,000 to complete the project and will produce the mural on a large shipping container in the garden.

Now thu July 28th Art Exhibit at Kemper Art Museum, Washington University- Seeds: Containers of a World to Come

Now thru March 31st, 2026, Missouri Botanical Garden exhibit at Sachs Museum, Missouri Botanical Garden: Smelling the Bouquet- Plants & Scents in the Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

DAILY

3 pm Sunday, June 1st, Plant Meet Up #6 at Art Bar, Angard Arts Hotel . Bring plants to trade or show off. Register

Monday, June 2nd, Deadline to order native plants online from Missouri Wildflowers Nursery for pick up Saturday, June 7th, at Kirkwood Farmer’s Market. This will be their Last Sale at Kirkwood Market for 2025.

2 pm Tuesday, June 3rd, St. Louis County Library Virtual Class: Food Forests – Building a Food-Producing Ecosystem. Register

Noon Wednesday, June 4th, Missouri Conservation Department virtual class: Foraging for Summer Chanterelles. Register

2 pm Wednesday, June 4th, St. Louis County Library class at Parkview Branch: Four Season Gardening presented by Seed St. Louis. Register

2 pm Wednesday, June 4th, St. Louis City Public Library event at Barr Library: Wild in the City- Animals That Call St. Louis Home presented by Missouri Conservation Department.

4 pm Wednesday, June 4th Missouri Prairie Foundation webinar: Not Just for Ducks … Reframing Wetland Conservation. Register

For ages 12-18. 4:30 pm Wednesday, June 4th, St. Louis Public Library event at Kingshighway Library: Wildflower Seed Ball Making

9 am Thursday, June 5th, Heartlands Conservancy event in Edwardsville, Illinois: Cactus Blossom Walk at Knoll Wildlife Sanctuary. Register

1 pm Thursday, June 5th, Gratree Farm event in Wentzville, St. Charles County: U-Cut Lavender Grand Opening. Register

For ages 6-12 years. 10:30 am Thursday, June 5th, St. Louis City Public Library event at Baden Library: Serengeti Steve’s Reptile Experience

6 pm Thursday, June 5th, Seed St. Louis class at Bell Community Garden: Garden Tools 101. Register

11 am to 10 pm Friday-Saturday, June 6th-7th, International Horseradish Festival at Collinsville, Illinois

1 pm Friday, June 6th, Missouri Conservation Department Virtual Class: Nature Printmaking Tree Rings. Register

2 pm Friday, June 6th, St. Louis County Library class at Lewis & Clark Branch: Four Season Gardening presented by Seed St. Louis. Register

3-5 pm Friday, June 6th, A Red Circle event at North County Agricultural Education Center, North St. Louis County: Good Food Friday, North County residents are invited to stop by for a Free fresh bag of produce 

8 am to Noon Saturday, June 7th, Highland Garden Club Plant Sale at Korte Rec Center, Highland, Illinois

Last Sale. 8 am to 4 pm Saturday, June 7th, Missouri Wildflowers Nursery selling at Kirkwood Farmers Market. Order online by previous Monday for pick up at Market or purchase from what they bring that day.

10 am to 5 pm June 7th-8th Lafayette Square Spring House & Garden Tour. Tickets $40 + fee

For ages 13-17 years. 10 am to 2 pm June 7th St. Louis Public Library event at Carondelet Library: Teen Clean Up Day in Carondelet. Pick up trash in the neighborhood, clean garden beds, plant flowers. Tools, water, lunch provided. Register

5 Seats remaining. Noon Saturday, June 7th, St. Louis Public Library workshop at Central Library: The Art of Wedding Flowers- Design, Arrange, Impress. Register

8 pm Saturday, June 7th, St. Louis Astronomical Society event at Tower Grove Park: Stargazing

3 Tickets remaining. 5:45 pm Sunday, June 8th, Missouri Conservation Department event at Columbia Bottom Conservation Area: Full Strawberry Moon at the Confluence. Register

Noon June 11th Missouri Conservation Department Virtual Workshop: Planning the Perfect Float Trip. Register

For Kids ages 2-10 years. 4 pm June 11th St. Louis Public Library event at Schlafly Library: The Chef Bananas Show.

2 Tickets remaining. Seven Days between June 14th-August 8th Missouri Conservation Department’s Camp Hellbender Summer Camp Series for Adults at Rockwoods Reservation, August A. Busch Memorial CA, Columbia Bottom CA, Powder Valley Conservation NC, Carondelet Park. Register

Volunteers Wanted. 8 am June 12th Heartlands Conservancy event in Edwardsville, Illinois: Poag Sand Prairie Restoration Stewardship Day. Register

6 pm June 12th Missouri Conservation Department Virtual Class: Nature’s Night Shift- Nocturnal Pollinators. Register

3-5 pm Friday, June 13th, A Red Circle event at North County Agricultural Education Center, North St. Louis County: Good Food Friday, North County residents are invited to stop by for a Free fresh bag of produce 

June 13th-14th Lebanon (Illinois) Garden Club Secret Garden Tour. $10

Volunteers Wanted. 9 am June 14th Piasa Palisades Sierra Club event in Alton, Illinois: Wadlow Restoration Work Day. The former site of a municipal gold course is being restored to native plants. Register

For ages 13-17 years. 10 am to 2 pm June 14th St. Louis Public Library event at Kingshighway Library: Teen Clean Up Day. Pick up trash in the neighborhood, clean garden beds, plant flowers. Tools, water, lunch provided. Register

10 am June 14th Urban Harvest STL class at Grandel Demonstration Farm: DIY Compost Tumbler. Free. Register

11 am June 14th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register

11 am June 14th Waste Connections Sustainability Campus class at Maryland Heights: Open Program Day- Bees, Pollinators, Native Plants

1 pm June 14th St. Louis Public Library class at Central Library: Herbs in the Civil War!

1 pm June 14th St. Louis County Library event at Thornhill Branch: Plant Swap. Register

2-4 pm June 14th Kemper Art Museum event in museum lobby: Collective Futures. Celebrate the exhibition Seeds- Containers of a World to Come. Music, dance, art-making. Planting Microgreens; Juan William Chávez: Imaynatataq Papawan Sumaq Ch’in Chisi (How to Spend a Nice Quiet Evening with a Potato); more. Free. Register

10 am June 16th St. Louis County Library event at Grant’s View Branch: Edible Landscaping presented by Seed St. Louis. Register

6 pm June 16th Missouri Conservation Department Virtual Class: Paddle Prep. Learn about the gear you’ll need, trip planning, and helpful tips to navigate the streams with confidence. Register

6 pm June 17th St. Louis County Library event at Jamestown Bluffs Branch, Florissant: Harvesting and Preserving Herbs presented by St. Louis Herb Society. Register

4 pm June 18th Missouri Prairie Foundation Webinar: Return of the Wapato. Wapato (Sagittaria spp.), a starchy tuber, has been utilized by the Yakama People since time immemorial. Register

4 pm June 20th Missouri Conservation Department Virtual Class: Prairies of Missouri. Fun Fact- prairies make up 1/3 of Missouri. Register

8:30 am June 21st Seed St. Louis Tour de Plants (bike ride), Southwest City Edition. $15 suggested donation. Register

9 am to Noon June 21st Webster Groves Herb Society Display at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

9 am to 5 pm June 21st Carnivorous Plant Society Show and Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

10 am June 21st Grow Native! Native Garden of Excellence Tour: Native Plant Garden at Ladue City Hall. Register

11:30 am to 4:30 pm June 21st Missouri Botanical Garden event at Sachs Museum: Sniff ‘n Learn- Fragrance in the Victorian Age with Mourning Society of St. Louis (dressed in period costume). Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

June 21-22 St. Louis Water Garden Society Pond-A-Rama tour. Tickets

2 pm June 23rd St. Louis County Library class at Cliff Cave Branch: Four Seasons Gardening presented by Seed St. Louis. Register

5:30 pm June 23rd Missouri Conservation Department Virtual Class: Wildlife Identification. Register

For Kids ages 3-9 years. 2 pm June 24th St. Louis County Library event at Sachs Branch, Chesterfield: Super Seeds presented by Missouri Botanical Garden. Explore how seeds travel and take home seeds for your next garden. Register

9 am to 5 pm June 25th Kimmswick Visitor Center 25th Annual Daylily Sale. 35 Minute drive from St. Louis. Go early for best selection.

4 pm June 25th Grow Native! webinar: Master Class- Native Perennials for Planting on Slopes. Free to Missouri Prairie Foundation members and Grow Native! professional members. $15 for non-members. Register

7 pm June 26th Missouri Conservation Department event at Powder Valley Conservation Nature Center, Kirkwood: Powder Valley at Dusk, a guided tour. Register

5:30 pm June 26th Missouri Coalition for the Environment St. Louis Chats for Change at Modern Brewing

9 am to 2 pm Friday and 8 am to 2 pm Saturday, June 27th-28th, Flyleaf Market monthly pop up on 1st floor of Watson Terrace Christian Church, Watson @ Winnebago: Succulent & Tropical Plant Sale. This involves a very cool Citizen Growers program.

Noon June 27th Missouri Conservation Department Virtual Class: Native Plants- Gardening For Wildlife. Register

3-5 pm Friday, June 27th, A Red Circle event at North County Agricultural Education Center, North St. Louis County: Good Food Friday, North County residents are invited to stop by for a Free fresh bag of produce 

11 am June 28th St. Louis Public Library event at Carpenter Library: Birds in Your Backyard, Birds in Your City: An Ornithological Summer Series- Session 1: Birding 101: Missouri’s KAKAWphony of Species presented by Missouri Conservation Department. Register

July 1st St. Louis Count Library Virtual Class: Container Gardening – Fruit, Vegetables and Microgreens presented by Seed St. Louis. Register

3-5 pm Friday, July 4th, A Red Circle event at North County Agricultural Education Center, North St. Louis County: Good Food Friday, North County residents are invited to stop by for a Free fresh bag of produce 

For Kids ages 6-12 years. 2 pm July 5th St. Louis County Library event at Daniel Boone Branch, Ellisville: Wild About Watermelon. Register

For Kids. 1 pm July 8th St. Louis Public Library event at Carondelet Library:  Swinging Through the Rainforest presented by Missouri Botanical Garden. Discover which animals and plants live in the layers of the rainforest. Take home a rainforest plant to start your own jungle. Register

4:30 pm July 8th The Royale & Missouri Botanical Garden present Show Me Your Garden Cocktail Competition 2025. Purchase Tickets $54.70 (including fees & taxes).

For Kids ages 5-12 years. 3:30 pm July 9th St. Louis Public Library event at Baden Library: Bees and Butterflies Stories and Crafts. Register

6:30 pm July 9th St. Louis County Library Virtual program: Houseplant Hospital. Register

11 am July 12th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens June 14th

11 am to 2 pm July 12th A Red Circle event at North County Community Nexus: Ice Cream + Art in the Garden. Family Ticket $7.18 which includes $2.18 Card Fee. Register

2 pm July 12th Kemper Art Museum event: Curatorial Tour of Seeds (Containers of a World to Come). Learn about the work of 10 contemporary artists from a range of geographical and cultural contexts whose practices explore plant–human–land relations. Register

6 pm July 22nd St. Louis County Public Library Virtual program: Grant Opportunities for Your Garden – Rainscaping 101 presented by the Missouri Botanical Garden. Register

2 pm July 25th St. Louis City Public Library class at Central Library: Food Preservation 101- Canning presented by University of Missouri Extension

11 am July 26th St. Louis Public Library event at Carpenter Library: Birds in Your Backyard, Birds in Your City: An Ornithological Summer Series- Session 2: Habitat Helpers: Won’t You Be My NeighBIRD? presented by Missouri Conservation Department. Register

1 pm July 26th St. Louis City Public Library class at Central Library: Herbs Around the Mediterranean

End of July: Ordering begins for Brightside St. Louis Blooming Soon Tulip & Daffodil Bulb Sale. Pick Up in October.

9 am to 5 pm August 2nd-3rd Greater St. Louis Iris Society Plant Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

1 pm August 2nd St. Louis City Public Library class at Central Library: Harvesting and Preserving Herbs

11 am August 9th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens July 12th

Noon to 5 pm August 10th Orchid Society of Greater St. Louis Auction at Missouri Botanical Garden. Admission Fee applies. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

9 am August 16th Seed St. Louis Fall Seedling Sale at Carriage House, 3815 Bell

9 am to Noon August 16 Webster Groves Herb Society Display at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

9 am to 5 pm August 16th Missouri Botanical Garden Daylily Association Plant Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

1 pm August 16th St. Louis Public Library class at Central Library: Gardens and Plants of Colonial America. Oddly does not mention labor and plants of enslaved persons.

11 am August 23rd St. Louis Public Library event at Tower Grove Park: Birds in Your Backyard, Birds in Your City: An Ornithological Summer Series- Session 3: Bird Walk with Missouri Conservation Department. Register

9 am to 5 pm September 6th Gateway West Gesneriad Society Show and Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

8 am to Noon September 13th Edwardsville IL Garden Club Plant Sale at St. Mary’s Church Parking Lot

1 pm September 13th St. Louis Public Library class at Central Library: Mad About Mushrooms

2:30 pm September 13th St. Louis Public Library class at Central Library: Fascinating Victorian Gardens

2 pm September 17th Partners for Native Landscaping and St. Louis County Library Zoom Class: Missouri Native Trees and Shrubs for Urban Landscapes. Register

10 am to 2 pm September 22nd Bring Conservation Home Expo at Tower Grove Park. Missouri Wildflower Nursery and other vendors will be selling but you can also order plants for pick up at the event.

9 am to Noon September 27th Webster Groves Herb Society Display at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

2 pm October 1st Partners for Native Landscaping and St. Louis County Library Zoom Class: St. Louis Native Plants in a Changing Climate. Register

October 3rd-5th Best of Missouri Market at Missouri Botanical Garden. Missouri Wildflowers Nursery is usually a vendor and this is last opportunity to purchase native plants in St. Louis City for the year. Admission Fee applies.

1 pm October 4th St. Louis Public Library class at Central Library: How Indigenous People Used Native Plants for Their Health and Well-Being

October 5th-6th Baker Creek Fall Harvest Festival in Mansfield, Wright County, MO, about a 3 1/2 hour drive from St. Louis or Kansas City

2 pm October 15th Partners for Native Landscaping and St. Louis County Library Zoom Class: Native Gardening Maintenance Tips, Tricks and Hacks. Register

9 am October 18th Seed St. Louis Garlic Sale at Carriage House, 3815 Bell

1 pm November 1st St. Louis Public Library class at Central Library: Decorating with Herbs

1 pm December 6th St. Louis Public Library class at Central Library: Preventing Winter Plant Damage

Join us Sundays on Bluesky for #GardenSunday.

This Week in Gardening & Nature

Scarlett Heaven, a red peony with yellow center

Plant of the Week: Peonies. Shown is Scarlet Heaven.

Seed St. Louis Raised Bed Plant Spacing Chart

Plan your garden with  Seed St. Louis 2025 Planting Calendar.
-> Transplant This Week: Perennials, Trees, Basil, Eggplant, Melons, Peppers, Summer Squash, Tomatillo, Tomatoes
-> Sow Outdoors This Week: Basil, Beans, Cucumbers, Melons, Okra, Summer Squash, Tomatoes, Winter Squash

If you are just looking for St. Louis Area Plant and Seed Swaps and Sales, they are here. Added this week: more St. Louis County Library Plant Swaps, Ste Genevieve Master Gardeners Garden Tour & Plant Sale

Find a Native Plant/Seed vendor in Missouri, Illinois, Arkansas, Kansas,… (Grow Native)

St. Louis Master Gardeners Horticulture Answer Service: Monday through Thursday from 9 am. to 2:30 pm

River City Outdoors St. Louis now offers a Gear Lending Library for outdoor recreation equipment rentals to St. Louis City residents and St. Louis regional organizations that take children, families, and groups on outdoor trips.

Illinois School Teachers- March 2025 Application process begins for 2026 Illinois Schoolyard Habitat Action Grant Program

Good Reads/Views/Listens —

Why “Sharp Sand” Is the Secret to a Successful Garden, According to Horticulturists. This coarse, gritty sand improves drainage, fights root rot, and makes soil easier to dig—here’s how to use it right. (Real Simple)

The Joy of Native Plant Gardening. Planting native flora in your yard (as opposed to grass) offers a water-saving landscape and haven for pollinators. It can also provide peace and wonder. (Mountain Journal)

Aphids plaguing UK gardens in warm spring weather, says Royal Horticultural Society. Sap-sucking insects top list of queries to gardening charity after causing significant harm to plants (The Guardian)

Missouri is still illegally denying food assistance despite court order (Missouri Independent)

Butterflies of Missouri. Introduction to Butterflies (Washington University)

What Trump’s cuts to federal climate research could mean for Illinois. State climate scientists, lawmakers seek local solutions to address climate change (Capitol News Illinois)

Report: April storms that caused “generational” flooding made 40% more likely by climate change (Arkansas Advocate)

Bike buses get St. Louis kids to school—no school bus driver needed. Nonprofit St. Louis BWorks is organizing people-powered bike buses to get kids to and from six different schools this year. (St. Louis Magazine)

DOGE cuts take almost $500K from St. Louis nonprofit that teaches kids about nature (St. Louis Public Radio)

Deep Roots Kansas City Native Plant Gardening Videos

Seed St. Louis Videos: Variety Trials, Virtual Classes, Starting Seeds Indoors, Orchard Tips, Gardening Tips & How To, In the Community Garden, Youth Garden Activities & Tips, Teachers in the Garden Tutorials. I will continue promoting the online resources and activities of Seed St. Louis where appropriate. I will not, however, knowingly promote events at Maxine Clark’s school privatization campus named Delmar Divine. It is unfortunate that Seed St. Louis is now a tenant there.

Growing Vegetables Advice: Begin with a Plan, Seed Starting, Soil Management, Weed Management, Hardening Off Indoor Seedlings, Season Extension, Supporting Plants, Pest Management, Fertilizing Your Garden, Irrigation, Garden Tool Care, Container Gardens, More (University of Illinois Extension)

Shaw Nature Reserve Propagation Guide

Free Native Garden Designs @ Wild Ones. There’s one specific to St. Louis, one for Chicago, one for Denver, …

Native plant gardening in a pot. Missouri Botanical Garden has container designs for sun and shade.

Illinois Native Plants for the Home Landscape

Missouri Native Plant Top 10 Lists (Grow Native) Native Plants for Children, Poorly Drained Clay Soil, Sun, Shade, Half Sun & Half Shade, Under Utility Poles, Rain Gardens, Kitchen Gardens, Bees, Pollinators in Winter, Hummingbirds, Wildlife, Butterflies, More

2023 Plants of Merit – Annuals, Bulbs, Edibles, Perennials, Shrubs, Trees, Vines (Missouri Botanical Garden)

2023 Plants of Demerit – Bamboo, Big Leaf Hydrangea, Blueberry, Burning Bush, Chameleon Plant, Lavender, Pin Oak, Wintercreeper (Missouri Botanical Garden)

Gardening and Nature Events —

ONGOING

Volunteers Wanted. 9-11 am Tuesdays and Thursdays in May- Missouri Botanical Garden Plant It Forward program. Help dig tulips and other perennial varieties, clear display beds of debris, plant species for Summer/Fall season. Register

Volunteers Wanted. Brightside St. Louis May Blitz events.

Now thu July 28th Art Exhibit at Kemper Art Museum, Washington University- Seeds: Containers of a World to Come

DAILY

9 am to 5 pm Sunday, May 11th, Greater St. Louis Iris Society Show at Missouri Botanical Garden. Included with Garden Admission Fee.

1-4 pm Tuesday, May 13th, Bellefontaine Cemetery in person horticulture class: Integrated Pest Management for Home Gardeners. $15 suggested donation. Register

6:30 pm Tuesday, May 13th, Piasa Pallisades Sierra Club event at Old Bakery Beer, Alton IL: Speaker Series- Future of the Power Grid presented by Dr. Nicholas Johnson, Principia College. Learn about Illinois proposed Clean & Reliable Grid Affordability Act. Register

9 am Wednesday, May 14th, Bellefontaine Cemetery event: Arboretum Tour- Wildwood Valley Garden Walk with horticulturist. $5 suggested donation. Register

2-6 pm Wednesday, May 14th, Spring Plant Swap at LINC St. Charles County Community Center, 9 Love Park Lane, Wentzville MO

5 pm Thursday, May 15th, St. Louis Public Library event at Walnut Park Library: Wild Hearts- Understanding Animal Behavior in the Wild with St. Louis Zoo

6 pm Thursday, May 15th, Edwardsville Public Library class: Composting 101

6:30 pm Thursday, May 15th, Heartland Conservancy event: Third Thursday Cycling Series, Illinois.  16 miles on St. Clair County Transit District trails

7 pm Thursday, May 15th, St. Louis County Library Virtual Class: Houseplant Propagation 101. Register

Volunteers Wanted. 9 am Friday, May 16th, Heartlands Conservancy event at Belleville IL: Signal Hill Outdoor Classroom Volunteer Stewardship Day. Register

10 am Friday, May 16th, Bellefontaine Cemetery event: Springtime History & Horticulture Tour with Master Guide. Register

3:30 pm Friday, May 16th, Missouri Conservation Department virtual class: Outdoor Hazards- snakes, ticks, heat, and more. Learn how to prevent and reduce run-ins with outdoor hazards. Register

9 am to 5 pm Saturday, May 17th, Metropolitan St. Louis African Violet Council Show and Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

Only an hour drive from St. Louis. 9 am Saturday, May 17th, Heartlands Conservancy event at Carlyle Lake, Clinton County IL: Birding Walk. Register

Only an hour drive from St. Louis. 9 am to 4 pm Saturday-Sunday, May 17th-18th, Ste Genevieve Master Gardeners & University of Missouri Extension event: Garden Walk & Plant Sale. Visit private, historic gardens. Tickets to Walk $10 at event- cash, check, Venmo

Saturday, May 17th Bellefontaine Cemetery History & Horticulture Trolley Tours with Master Guide. $5 suggested donation. Register for 10 am Tour. Register for 1:30 pm Tour.

10 am to 3 pm Saturday, May 17th, Garden America Plant Expo at Weldon Spring Site Interpretive Center, St. Charles MO. Wild Ones St. Charles Chapter will be selling native plants.

2 Seats remaining. 6 pm May 19th St. Louis Public Library event at Machacek Library: DIY Spice Blends. Register

1:30 pm May 20th University of Illinois Extension Webinar: Managing Common Squash and Pumpkin Pests. Register

10 am May 21st St. Louis County Library class at Weber Road Branch: Growing Herbs in Containers presented by St. Louis Herb Society. Register

Noon May 21st Missouri Conservation Department Virtual Class:  Intro to Canoe and Kayak. Register

2 pm May 21st Partners for Native Landscaping and St. Louis County Library Zoom Class: Cultivating Native Seeds in the Landscape. Register

Ages 10 years to Adult. 2:30 pm May 21st Missouri Conservation Department Virtual event: Citizen Science- Butterfly Surveys. Register

4 pm May 21st Grow Native! Zoom Master Class: Native Perennials for Planting on Slopes. Free to all Missouri Prairie Foundation dues-paying members and Grow Native! professional members, or $15 for non-members. Register

6 pm May 22nd Missouri Conservation Department Virtual Class: Designing a Native Wildflower Garden. Register

9 am to 2 pm Friday and 8 am to 2 pm Saturday, May 23rd-24th, Flyleaf Market monthly pop up on 1st floor of Watson Terrace Christian Church, Watson @ Winnebago: Succulent & Tropical Plant Sale. This involves a very cool Citizen Growers program.

9 Tickets remaining. May 23rd Missouri Conservation Department event at Creve Coeur Park-Lake: Kayaking & Carp. Must be at least 14 years of age and know how to swim. All equipment provided. Learn about invasive carp removal and paddling equipment, paddling safety, and how to paddle a kayak on a lake. Register for 10 am program. Register for 1 pm program.

3 pm May 23rd St. Louis County event at Clark Branch: Seed & Plant Swap. Register

8 am to 4 pm May 24th Missouri Wildflowers Nursery selling at Kirkwood Farmers Market. Order online for pick up at Market or purchase from what they bring that day.

9 am to 5 pm May 24th-25th Rose Society of Greater St. Louis Show at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

Volunteers Wanted. 9 am May 24th Heartlands Conservancy event in Edwardsville IL: Knoll Family Wildlife Sanctuary Stewardship Day. Help protect and restore one of Illinois’ rarest habitats, this sand prairie and sand savanna site. Register

2 pm May 24th Missouri Conservation Department & River City Outdoors class at Tower Grove Park: Outdoor PreparednessCamping 101. Register. River City Outdoors runs a Free Outdoor Gear Lending Library for St. Louis City residents

May 26th Deadline to order native plants online from Missouri Wildflowers Nursery for pick up Saturday, May 31st, at Kirkwood Farmer’s Market

Ages 9 to Adult. May 28th Missouri Conservation Department workshop at Powder Valley Conservation Nature Center, Kirkwood: Introduction to Archery. Register for Noon class. Register for 3:30 pm class.

6 pm May 28th St. Louis Public Library event at Schlafly Library: How To Find An Owl In Your Neighborhood, presented by naturalist Mark H.X. Glenshaw, aka “The Owl Man.” Register

6 pm May 29th Seed St. Louis class at Bell Community Garden: Garden Design 101. Register

6 pm May 29th St. Louis County Library event at Sachs Branch, Chesterfield: Reading Garden Book Walk. Get book recommendations, snacks, and library themed gifts and prizes. Register

5 pm May 30th Missouri Conservation Department event at Tower Grove Park: Orienteering and GPS- Geocaching. Register

6 pm May 29th St. Louis County Library event at Sachs Branch, Chesterfield: Reading Garden Book Walk. Get book recommendations, snacks, and library themed gifts and prizes. Register

8:30 am to Noon May 31st Urban Gardening Symposium at Brightside St. Louis Demonstration Garden. $10. Register

8 am to 4 pm May 31st Missouri Wildflowers Nursery selling at Kirkwood Farmers Market. Order online by previous Monday for pick up at Market or purchase from what they bring that day.

9 am to Noon May 31st Northside Workshop event in Old North: Decolonize the Garden- From Seeds to Bees. Register

9 am to Noon May 31st Grow Native! 25th Anniversary Event: Greenscape Gardens Open House, Ballwin

2 pm June 3rd St. Louis County Library Virtual Class: Food Forests – Building a Food-Producing Ecosystem. Register

Noon June 4th Missouri Conservation Department virtual class: Foraging for Summer Chanterelles. Register

2 pm June 4th St. Louis County Library class at Parkview Branch: Four Season Gardening presented by Seed St. Louis. Register

2 pm June 4th St. Louis City Public Library event at Barr Library: Wild in the City- Animals That Call St. Louis Home presented by Missouri Conservation Department.

For ages 12-18. 4:30 pm June 4th St. Louis Public Library event at Kingshighway Library: Wildflower Seed Ball Making

10 am June 5th Gratree Farm event in Wentzville, St. Charles County: U-Cut Lavender Grand Opening. Register

For ages 6-12 years. 10:30 am June 5th St. Louis City Public Library event at Baden Library: Serengeti Steve’s Reptile Experience

6 pm June 5th Seed St. Louis class at Bell Community Garden: Garden Tools 101. Register

Family friendly. 10 Tickets remaining. 6 pm June 5th Missouri Conservation Department workshop at Forest Park Fish Hatchery: Fishing Lesson 1- Equipment, Casting, & Proper Fish Handling. Register

1 pm June 6th Missouri Conservation Department Virtual Class: Nature Printmaking Tree Rings. Register

2 pm June 6th St. Louis County Library class at Lewis & Clark Branch: Four Season Gardening presented by Seed St. Louis. Register

8 am to 4 pm June 7th Missouri Wildflowers Nursery selling at Kirkwood Farmers Market. Order online by previous Monday for pick up at Market or purchase from what they bring that day.

10 am to 5 pm June 7th-8th Lafayette Square House & Garden Tour. Ticket info pending

For ages 13-17 years. 10 am to 2 pm June 7th St. Louis Public Library event at Carondelet Library: Teen Clean Up Day in Carondelet. Pick up trash in the neighborhood, clean garden beds, plant flowers. Tools, water, lunch provided. Register

For ages 13-17 years. 10 am to 2 pm June 14th St. Louis Public Library event at Kingshighway Library: Teen Clean Up Day. Pick up trash in the neighborhood, clean garden beds, plant flowers. Tools, water, lunch provided. Register

11 am June 14th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens May 17th

1 pm June 14th St. Louis Public Library class at Central Library: Herbs in the Civil War!

1 pm June 14th St. Louis County Library event at Thornhill Branch: Plant Swap. Register

10 am June 16th St. Louis County Library event at Grant’s View Branch: Edible Landscaping presented by Seed St. Louis. Register

6 pm June 17th St. Louis County Library event at Jamestown Bluffs Branch, Florissant: Harvesting and Preserving Herbs presented by St. Louis Herb Society. Register

8:30 am June 21st Seed St. Louis Tour de Plants (bike ride), Southwest City Edition. $15 suggested donation. Register

9 am to Noon June 21st Webster Groves Herb Society Display at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

9 am to 5 pm June 21st Carnivorous Plant Society Show and Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

10 am June 21st Grow Native! Native Garden of Excellence Tour: Native Plant Garden at Ladue City Hall. Register

June 21-22 St. Louis Water Garden Society Pond-A-Rama tour. Tickets

2 pm June 23rd St. Louis County Library class at Cliff Cave Branch: Four Seasons Gardening presented by Seed St. Louis. Register

For Kids ages 3-9 years. 2 pm June 24th St. Louis County Library event at Sachs Branch, Chesterfield: Super Seeds presented by Missouri Botanical Garden. Explore how seeds travel and take home seeds for your next garden. Register

9 am to 5 pm June 25th Kimmswick Visitor Center 25th Annual Daylily Sale. 35 Minute drive from St. Louis. Go early for best selection.

11 am July 26th St. Louis Public Library event at Carpenter Library: Birds in Your Backyard, Birds in Your City: An Ornithological Summer Series- Session 2: Habitat Helpers: Won’t You Be My NeighBIRD? presented by Missouri Conservation Department. Register

5:30 pm June 26th Missouri Coalition for the Environment St. Louis Chats for Change at Modern Brewing

9 am to 2 pm Friday and 8 am to 2 pm Saturday, June 27th-28th, Flyleaf Market monthly pop up on 1st floor of Watson Terrace Christian Church, Watson @ Winnebago: Succulent & Tropical Plant Sale. This involves a very cool Citizen Growers program.

11 am June 28th St. Louis Public Library event at Carpenter Library: Birds in Your Backyard, Birds in Your City: An Ornithological Summer Series- Session 1: Birding 101: Missouri’s KAKAWphony of Species presented by Missouri Conservation Department. Register

July 1st St. Louis Count Library Virtual Class: Container Gardening – Fruit, Vegetables and Microgreens presented by Seed St. Louis. Register

For Kids ages 6-12 years. 2 pm July 5th St. Louis County Library event at Daniel Boone Branch, Ellisville: Wild About Watermelon. Register

For Kids. 1 pm July 8th St. Louis Public Library event at Carondelet Library:  Swinging Through the Rainforest presented by Missouri Botanical Garden. Discover which animals and plants live in the layers of the rainforest. Take home a rainforest plant to start your own jungle. Register

For Kids ages 5-12 years. 3:30 pm July 9th St. Louis Public Library event at Baden Library: Bees and Butterflies Stories and Crafts. Register

11 am July 12th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens June 14th

2 pm July 25th St. Louis City Public Library class at Central Library: Food Preservation 101- Canning presented by University of Missouri Extension

1 pm July 26th St. Louis City Public Library class at Central Library: Herbs Around the Mediterranean

9 am to 5 pm August 2nd-3rd Greater St. Louis Iris Society Plant Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

1 pm August 2nd St. Louis City Public Library class at Central Library: Harvesting and Preserving Herbs

11 am August 9th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens July 12th

Noon to 5 pm August 10th Orchid Society of Greater St. Louis Auction at Missouri Botanical Garden. Admission Fee applies. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

9 am August 16th Seed St. Louis Fall Seedling Sale at Carriage House, 3815 Bell

9 am to Noon August 16 Webster Groves Herb Society Display at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

9 am to 5 pm August 16th Missouri Botanical Garden Daylily Association Plant Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

11 am July 26th St. Louis Public Library event at Tower Grove Park: Birds in Your Backyard, Birds in Your City: An Ornithological Summer Series- Session 3: Bird Walk with Missouri Conservation Department. Register

9 am to 5 pm September 6th Gateway West Gesneriad Society Show and Sale at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

8 am to Noon September 13th Edwardsville IL Garden Club Plant Sale at St. Mary’s Church Parking Lot

2 pm September 17th Partners for Native Landscaping and St. Louis County Library Zoom Class: Missouri Native Trees and Shrubs for Urban Landscapes. Register

10 am to 2 pm September 22nd Bring Conservation Home Expo at Tower Grove Park. Missouri Wildflower Nursery and other vendors will be selling but you can also order plants for pick up at the event.

9 am to Noon September 27th Webster Groves Herb Society Display at Missouri Botanical Garden. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

2 pm October 1st Partners for Native Landscaping and St. Louis County Library Zoom Class: St. Louis Native Plants in a Changing Climate. Register

October 3rd-5th Best of Missouri Market at Missouri Botanical Garden. Missouri Wildflowers Nursery is usually a vendor and this is last opportunity to purchase native plants in St. Louis City for the year. Admission Fee applies.

October 5th-6th Baker Creek Fall Harvest Festival in Mansfield, Wright County, MO, about a 3 1/2 hour drive from St. Louis or Kansas City

2 pm October 15th Partners for Native Landscaping and St. Louis County Library Zoom Class: Native Gardening Maintenance Tips, Tricks and Hacks. Register

9 am October 18th Seed St. Louis Garlic Sale at Carriage House, 3815 Bell

Join us Sundays on Bluesky for #GardenSunday.

This Week in Gardening & Nature

Plant of the Week: Peonies

Sow Outdoors This Week: Basil, Beans, Cucumbers, Melons, Squash
Transplant This Week: Perennials + Basil, Brussels Sprouts, Melons, Parsley, Squash
Plan your garden with NEW 2024 Seed St. Louis Planting Calendar

If you are only looking for St. Louis Area (Missouri and Illinois) Plant Sales, here’s a page for them.

August 31st Deadline to Enter Missouri Conservation Department’s Busch Conservation Area (St. Charles Mo) Wildlife Photography Contest. Submit photos of native Mo wildlife, trees, plants at Busch Conservation Area or Weldon Spring Conservation Area.

September 1st Deadline to Enter Missouri Department of Natural Resources Photography Contest. Submit photos of Natural Resources, Unique Places (state parks, historic sites), People Enjoying Outdoors

Hey, grades 6th thru 12th Teachers. Missouri Environmental Education Association has great resources for an Invasive Species Mock Trial Unit that combines Ecology and Civic Engagement. Also see Trial of Bush Honeysuckle

Brightside St. Louis Blitz Project Registration Open (neighborhood clean up and beautification). Free Blitz Blooms available this year for your public spaces project: gomphrena, dianthus, marigolds, celosia and vinca

Good Reads —

Gardening by Month: May Tips, Tasks, Problems from Missouri Botanical Garden

Your yard can help avert the insect apocalypse. Here’s how. Welcome lacewings, sweat bees and lady beetles (back) into your life. (gifted article @ Washington Post)

State of the climate: 2024 off to a record-warm start This year is shaping up to either match or surpass 2023 as the hottest year on record. (Carbon Brief)

The Trees I’ve Loved — and Lost (Riverfront Times)

Container Gardening Tips
Native Plants: Grow Native!
Veggies: Missouri Botanical Garden
5 Tips For Successfully Growing Plants In Containers: P. Allen Smith

Illinois Native Plants for the Home Landscape

Missouri Native Plant Top 10 Lists (Grow Native) Native Plants for Children, Poorly Drained Clay Soil, Sun, Shade, Half Sun & Half Shade, Under Utility Poles, Rain Gardens, Kitchen Gardens, Bees,  Pollinators in Winter, Hummingbirds, Wildlife, Butterflies, More

2023 Plants of Merit – Annuals, Bulbs, Edibles, Perennials, Shrubs, Trees, Vines (Missouri Botanical Garden)

2023 Plants of Demerit – Bamboo, Big Leaf Hydrangea, Blueberry, Burning Bush, Chameleon Plant,  Lavender, Pin Oak, Wintercreeper (Missouri Botanical Garden)

Gardening and Nature Events

Volunteers Wanted. Check out upcoming Brightside St. Louis Neighborhood Clean Up & Beatification events. Some Blitz events offer Cardinals tickets to volunteers.

10 am every Monday St. Louis Public Library Outdoor Storytime in Forest Park, Albrecht Nature Playscape.

11 am Tuesday, April 30th, Missouri Conservation Department Zoom Class: Native Plants- Wonderful Wildflower ID. Register

May 1st to August 31st Missouri Conservation Department Busch Conservation Area (St. Charles Mo) Wildlife Photography Contest. Submit photos of native Missouri wildlife, trees, or plants at Busch Conservation Area or neighboring Weldon Spring Conservation Area.

10 am Thursday, May 2nd, Bellefontaine Cemetery History and Horticulture Walking Tour with Master Guide. Register

6 pm Thursday, May 2nd, Seed St. Louis Zoom Class: School Garden Maintenance Strategies for Summer & Beyond. Register

Ages 3+. 8 Seats remaining. Children must be accompanied by adult. 6 pm Thursday, May 2nd, Missouri Conservation Department in-Person Class at Forest Park Hatchery: Fishing Lesson 1- Equipment, Casting, & Proper Fish Handling. This class is required before Lesson 2. Register

9 am to 1 pm Friday, May 3rd Montgomery County IL Master Gardeners Hanging Basket Sale @ Mt. Moriah Lodge 51, Hillsboro IL

11:30 am to 4:30 pm Friday, May 3rd, 2024 to March 31st, 2025 Missouri Botanical Garden multimedia exhibit at Sachs Museum- Kernels of Culture: Maize Around the World. Garden Admission is Free to St. Louis City and St. Louis County residents on Wednesday and Saturday mornings.

Friday thru Sunday Earth Dance Organic Farm Plant Sale, Ferguson

8 am to Noon Saturday, May 4th, Edwardsville IL Garden Club Spring Plant Sale at St. Mary’s Church parkign lot, 1802 Madison

8:30 am to 12:30 pm Saturday, May 4th, Webster Groves Women’s Garden Association Plant Sale, First Congregational Church, Webster Groves

9 am to 2 pm Saturday-Sunday, May 4th-5th, Tower Grove East Community Garden Plant Sale at 3303 Sidney: veggies, annuals, perennials, hostas, ground covers

9 am to 1 pm Saturday, May 4th, Shaw Nature Reserve Wildflower Market

10:30 am May 4th EcoTones Concert at Nee Kee Nee Stream, Tower Grove Park

10 am to 2 pm May 5th Feed the People Garden Project Plant Sale in Bevo Neighborhood.: Vegetables, Herbs, Flowers

8 am May 6th Kress Farm Garden Preserve Plant Sale in Hillsboro, Jefferson County MO. Native plants, shrubs, trees; nonnative plants, annuals, vegetable seedlings.

2 pm May 7th Seed St. Louis and St. Louis County Library Zoom Class: Summer Crops & Cover Crops. Register

4 pm May 8th Missouri Prairie Foundation Virtual Walk on the Prairie, Spring Edition @ Pettis County. Register

8 am to 1 pm May 11th Flora Conservancy of Forest Park Plant Sale at St. Louis City Greenhouse

8 am to Noon May 11th Mississippi Valley Garden Club Plant Sale at Alton-Wood River Sportsmen’s Club, 3109 Godfrey, Godfrey IL

8 am to Noon May 11th O’Fallon Garden Club Plant Sale at 2606 Riley Paul Ct, O’Fallon, MO

9 am May 11th Seed St. Louis Summer Seedling Sale: Veggies, Herbs, Annuals $3.50 each: Basil, Egglplant, Helenium Amarum, Jalapenos, Parsley, Sweet Pepper, Tomatillo, Tomatoes. Perennials $6 each: Lavender Munstead, Mountain Mint, Rhubarb, Sea Kale, Sorrel, Wild Arugula.

9 am to 5 pm May 11th St. Louis Hosta Society Show and Sale at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

9 am to 3 pm May 11th Franklin County Mo Master Gardeners Plant Sale at JC Penny Parking Lot, Washington MO

10 am to 2 pm May 11th Missouri Prairie Foundation Native Plant Sale at Wild Bird Sanctuary, Valley Park. $8-$12 entrance fee.

10 am May 11th Companion Planting 101 Class at Heru Urban Farming, Florissant. Register

9 am to 5 pm May 12th Greater St. Louis Iris Society Show at Missouri Botanical Garden

9 am to 4 pm May 14th St. Louis Audubon and St. Louis Wild Ones Native Plant garden Tour. $20

6:30 pm May 14th Piasa Palisades Sierra Club May Speaker: Kill Your Lawn for the Birds at Old Bakery Beer, Alton IL. Register

8 am to 1 pm May 18th Wild Ones Illinois Prairie Chapter Native Plant Sale at Carlock, McLean County IL

10 am to 3 pm May 18th Plant America Garden Expo at Weldon Spring Site Interpretive Center, St Charles MO.

7:30 pm May 18th St. Louis Astronomical Society Stargazing at Tower Grove Park

Ages 8+. 8:30 am May 19th St. Louis Audubon Society Beginner Bird Walk at Tower Grove Park. Register

4 pm May 22nd Missouri Prairie Foundation Webinar: EDDMapS Training- Learning How to Document Invasive Plants. Register

8:30 am to 1 pm May 25th Macoupin County IL Master Gardener Plant Sale @ Macoupin County Historical Society, Carlinville IL

9 am to 5 pm May 25th Metropolitan St. Louis African Violet Council Show and Sale at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

1-2 pm May 25th New Roots Urban Farm Workshop: Planting Sunflowers 101 with Farmer Twan, St. Louis Place. Register

9 am to Noon June 1st Brightside St. Louis Urban Gardening Symposium. Native Plant & Design Experts, Workshops, Plant Sale. $10. Register

June 1st (not confirmed) Lafayette Square Neighborhood Garden Tour & Antique Fair

June 1st Green Living Festival at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

10 am June 8th How to Trellis Tomatoes Class at Heru Farms, Florissant. Register

June 9th Missouri Botanical Garden sponsored Private Garden Tour. Tickets: $50 MoBot Member, $65 Nonmember

9 am to 5 pm June 15th Carnivorous Plant Society Show and Sale at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

9 am to 5 pm June 22nd Kimmswick Visitor Center Daylily Sale, Jefferson County Mo

9 am to to 5 pm June 22-23 St. Louis Water Garden Society Pond-O-Rama Tour

July 20st-22nd Shaw Cactus & Succulent Society Cactus & Succulent Sale, St. Louis County

June 30th Greater St. Louis Sustainable Backyard Tour

9 am to 5 pm August 3rd Greater St. Louis Iris Society Iris Sale at at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

9 am to 5 pm August 17th Missouri Botanical Garden Daylily Association Plant Sale at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

10-11:30 am August 17th Homegrown Hot Sauce Class with Urban Harvest’s Chef Queenie at Rung, Fox Park. Register

Noon to 5 pm August 18th Orchid Society of Greater St. Louis Auction at Missouri Botanical Garden. Garden admission fee required.

3-7 pm September 6th Shaw Nature Reserve Fall Wildflower Market

9 am to 5 pm September 7th Gateway West Gesneriad Society Show and Sale at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

September 13th, 14th, 15th Kirkwood Greentree Festival at Kirkwood Park. Greater St. Louis Daffodil Society sells Daffodil bulbs at this event.

9 am to 5 pm September 28th Rose Society of Greater St. Louis Show at Missouri Botanical Garden. Garden admission free to St. Louis City and County residents on Wednesday and Saturday mornings.

Join us Sundays on Twitter for #GardenSunday to interact with other outdoor and indoor gardeners and nature enthusiasts, ask questions, give answers, share photos.