Plant of the Week: Tulips

April 30th Deadline for Powder Valley Urban Nature Photo Contest

May 3rd Deadline for submissions to Soulard Art Gallery juried Exhibit: The Art of Nature

Hey, Missouri Birders. Enter the Missouri Birding Challenge

Seed St. Louis Raised Bed Plant Spacing Chart

Plan your garden with  Seed St. Louis 2025 Planting Calendar.
-> Start Indoors This Week: Basil, Eggplant, Peppers, Tomatillo, Tomato
-> Transplant This Week: Perennials, Trees, Bok Choy, Broccoli, Cabbage, Chard, Collards, Kale, Lettuce
-> Sow Outdoors This Week: Beans, Beets, Bok Choy, Carrots, Chard, Collards, Kale, Lettuce, Parsley, Peas, Radish, Spinach, Turnips

When to Plant in Illinois (University of Illinois Extension)

USDA Plant Hardiness Zone Map

Free Garden Planners, most require a computer, will not work on a cell phone

If you are just looking for St. Louis Area Plant and Seed Swaps and Sales, they are here. Added this week: Tower Grove East Community Garden Annual Plant Sale, Lincoln County Mo Master Gardener 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 —

Every yard makes a difference. Native-plant champion Doug Tallamy’s got a new book explaining how (Associated Press)

Millions of seedlings and cases of hot sauce: Behind the scenes at a Missouri state tree nursery (St. Louis Public Radio)

I don’t want to die with a freezer full of seeds. Biodiversity and preservation need rethinking. Hurricane Helene proved a hard truth: a freezer of seeds is the literal version of putting all your eggs in one basket (The Guardian)

April Issue of Missouri Conservationist

Time-Warped Gardens (Wild Ones)

Trump attack on state climate laws likely doomed, but attempts to yank funds may be next (Iowa Capital Dispatch)

As demand for AI rises, so do power thirsty data centers (Missouri Independent via States Newsroom)

Bill advances to end lifetime food aid ban for Nebraskans who served time for drug felonies (Nebraska Examiner)

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 —

Volunteers Wanted. Brightside St. Louis April Blitz events. Register your neighborhood clean up and/or beautification event and request bags/tools here.

Now thru April 25th, except Wednesdays and Sundays, St. Louis Public Library event at Central Library: St. Louis Watercolor Society 25th Annual Juried Exhibition. Bound to be some gorgeous flowers and nature submissions.

Now thru April 30th St. Louis Public Library event at Schlafly Library: Art Exhibit- Pressed, we flower, recent abstract works by Sean Duvahl Semones

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

Volunteers Wanted. 9 am Sunday, April 13th ,STL Urban Foresters event: Tower Grove East Neighborhood Tree Care Blitz. Register

10 am to 2 pm Sunday, April 13th, Riverlands Native Plant Festival at West Alton, Missouri: Speakers, workshops, native plant giveaway for attendees volunteering for sand prairie planting at event

11 am to 1 pm Sunday, April 13th, City Greens Market Free Annual Spring Patio Party in The Grove: Seed Swap, Chili Cook-Off, Worm Composting Workshop. Register

Monday, April 14th, Deadline to order native plants online from Missouri Wildflowers Nursery for pick up Saturday, April 19th, at Kirkwood Farmer’s Market

5:30-8 pm Tuesday, April 15th, University City School District event at University City High School: Film Screening & Director Conversation- Farming While Black with Leah Penniman. Includes light supper. Register

9:45 am Wednesday, April 16th, Missouri Sierra Club Lobby Day at Missouri State Capitol. Register

10 am Wednesday, April 16th, Bellefontaine Cemetery & Arboretum event: History & Horticulture Trolley Tour with Master Guide: $5. Register

2 pm Wednesday, April 16th, Partners for Native Landscaping and St. Louis County Library Zoom Class: Pollinator Powerhouses and Keystone Plant Species. Register

Noon Thursday, April 17th, Homegrown National Park Earth Day webinar: From Wasteland to Wonder presented by treecologist Basil Camu. Easy ways to help heal the earth in the Sub/Urban Landscape. Register

6 pm Thursday, April 17th, St. Louis County Library event at Jamestown Bluff Branch, Florissant: Make It, Take It- Plant Pot. Register

6 pm Thursday, April 17th, St. Louis County Public Library Spring Gardening Swap at Prairie Commons Branch, Hazelwood. Bring plants, seeds, bulbs, gardening tools, gardening books to swap

10 am Friday, April 18th, Bellefontaine Cemetery & Arboretum event: Springtime History & Horticulture Walking Tour with Master Guide. Register

11 am Friday, April 18th, St. Louis Public Library event at Machacek Library: Book Discussion- Peter Wohlleben’s “The Hidden Life of Trees.”

8 am to 4 pm Saturday, April 19th, Missouri Wildflowers Nursery selling at Kirkwood Farmers Market. Order onlineby previous Monday for pick up at Market or purchase from what they bring that day.

9 am Saturday, April 19th, Heartlands Conservancy event at White Rock Nature Preserve, Valmeyer, Illinois: Spring Wildflower Walk. Register

9-11 am April 19th International Institute of St. Louis event at Tower Grove Park: Race for Refugees. Register

10 am & 1 pm Saturday, April 19th, Bellefontaine Cemetery & Arboretum event: History & Horticulture Trolley Tours with Master Guide. $5. 10 am Registration and 1 pm Registration.

1:30 pm Saturday, April 19th, Missouri Conservation Department Virtual Class: Mushroom Hunting. Register

Family friendly. 2-5 pm Saturday, April 19th, Tower Grove Park event: Tree Fest. Music, reading of The Lorax, crafts

2 pm Saturday, April 19th, Camping 101 with River City Outdoors and Missouri Conservation Department. Register. River City Outdoors provides a Free Gear Lending Library for St. Louis City residents.

3 pm Saturday, April 19th, Missouri Prairie Foundation’s Brews and Blooms at Civil Life Brewing.

April 21st Deadline to order native plants online from Missouri Wildflowers Nursery for pick up Saturday, April 26th, at Kirkwood Farmer’s Market

4 pm April 21st St. Louis County Library event at Jamestown Bluffs Branch, Florissant: Pollinator Party. Register

9 am to Noon April 22nd 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.

Volunteers Wanted: 10 am April 22nd Forest ReLeaf event: Pop Up Potting at Scott Joplin House,  help pot up some baby trees. Register

17 Tickets remaining. 1 pm April 22nd Missouri Conservation Department event at Emmenegger Nature Park, Kirkwood: Earth Day Hike & Nature Immersion. Two miles on Bluff Creek Trail. Register

4 pm April 23rd Grow Native! webinar: Wetlands for Native Bees. Register

6 pm April 23rd St. Louis County Library event at Rock Road Branch, St. Ann:
Spring Seed Bombs. Register

20 Tickets remaining. 1 pm April 24th Experience Art in Nature, Tour Saint Louis Art Museum’s Sculpture Garden with Simon Kelly. Event free but Register

April 24th, 25th, 26th Southwest Illinois College Horticulture Club’s Annual Plant Sale at Belleville Campus Greenhouses (waiting on link)

6 pm April 24th Missouri Conservation Department Virtual class: Learning to Hunt- Mushrooms. Register

6 pm April 24th Seed St. Louis, Table to Garden, Willoughby Farm and Good Dirt Composting Collective class at Collinsville, Illinois:  Food Too Good to Waste Series- Outdoor Composting: Bins and Tumblers. $15. Register

9 am to 4 pm April 25th St. Louis Herb Society Herb Sale at Missouri Botanical Garden parking lot.

10:30 am April 25th St. Louis Public Library event at Central Library: EcoTones Ensemble Concert, Cross-Pollinating Music & Nature

9 am to 2 pm Friday and 8 am to 2 pm Saturday, April 25th-26th, 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.

April 25th & 26th Webster Groves Garden Club Plant Sale at Webster Groves Recreation Complex

5 pm April 25th U City in Bloom Opening Night Party and Plant Sale. $25

7 pm April 25th Missouri Conservation Department event at Powder Valley Nature Conservation Center, Kirkwood: Multimedia Concert- Flute Journey by Katie Dancer. Register

8 am to 1 pm April 26th Lincoln County Mo Master Gardener Plant Sale @ University of Missouri Extension, Troy: Native Perennials, Perennials, Annuals, Vegetables, Herbs, Bulbs, Unique Garden Accessories. Cash Only.

8 am to 4 pm April 26th 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 1 pm April 26th Seven Pines Garden Club Plant Sale at Maryland Heights: annuals, perennials, vegetables

9 am until sold out April 26th Olivette in Bloom Native Plant Sale at Five Oaks on Warson

9 am to 1 pm Saturday and 11 am to 1 pm Sunday, April 26th-27th, U City in Bloom Pant Sale

10 am April 26th St. Louis County Library event at Daniel Boone Branch, Ellisville: Seed & Plant Swap

Volunteers Wanted. 10 am April 26th STL Urban Foresters event: Bevo Neighborhood Tree Care Blitz. Register

April 26th-27th Project Pollinator Native Plant Sale at Sachs Butterfly House, Chesterfield  

Noon to 3 pm April 26th Heartlands Conservancy Native Plant Sale & Order Pick Up at Clinton Hills Conservation Park Pavilion, Swansea, Illinois. Online Pre-Ordering thru April 9th.

10 am to 4 pm April 26th Missouri River Bird Observatory Birds, Bees & Blooms Festival at Arrow Rock, Missouri. This is a 2 1/2 hour drive from St. Louis and a 1 1/2 hour drive from Kansas City.

9 am to 4 pm April 26th-27th Three Rivers Community Farm Plant Sale in Elsah, Illinois: native perennials, herbs, annual bedding plants, cutting flowers, veggie seedlings

10 am April 27th to 6 pm May 4th Missouri River Bird Observatory Fundraiser: Online Auction

Noon to 2 pm April 27th St. Charles County Master Gardener Plant Sale at Missouri University Extension, St. Peters

1:30 pm April 29th University of Illinois Extension Webinar: Nature’s Uninvited Guests: The Impact of Invasive Plants. Properly dealing with invasive plants can lessen environmental impact. Register

6 pm April 29th Willoughby Farm event in Collinsville, Illinois- Fence Picket Planter Workshop. $40 – all materials, tools, instruction included. Register

2 pm April 30th Partners for Native Landscaping and St. Louis County Library Zoom Class: Oh, Deer – Dealing with Unwanted Guests in Your Landscape. Register

6 pm May 1st St. Louis Public Library event at Schlafly Library: Plant Predators- An Introduction to Carnivorous Plants with Carnivorous Plant Society. Register

May 2nd-3rd Shaw Nature Reserve Spring Wildflower Market

9 am to 2 pm May 3rd-4th Tower Grove East Community Garden Annual Plant Sale, 3301 Sidney: veggies, annuals, perennials, hostas, ground covers, herbs

9 am to 4 pm May 3rd-4th Three Rivers Community Farm Plant Sale in Elsah, Illinois: native perennials, herbs, annual bedding plants, cutting flowers, veggie seedlings

11 am to 3 pm May 3rd Rustic Roots Sanctuary event at Spanish Lake: Spring Dandelion Festival

1 pm May 3rd St. Louis Public Library event at Buder Library: Meet the Pack: Animals of the Endangered Wolf Center

1 pm May 3rd St. Louis Public Library class at Central Library: Growing Herbs in Containers.

1 pm May 3rd St. Louis Public Library event at Buder Library: Meet the Pack- Animals of the Endangered Wolf Center. No live animals tho.

1-4 pm May 3rd Missouri Prairie Foundation Field Trip at Hillsboro, Jefferson County MO: Valley View Glades Natural Area Hike. Register

3 pm May 3rd St. Louis Public Library movie event at Central Library: Green City Life Film Showing & Project. More on the documentary

7-10 pm May 3rd St. Louis Astronomical Society event at Tower Grove Park: Stargazing

May 4th-5th Baker Creek Spring Planting Festival in Mansfield, Wright County, MO, about a 3 1/2 hour drive from St. Louis or Kansas City

7 Seats remaining. 6:30 pm May 5th St. Louis Public Library cooking class at Cabanne Library: Make Your Own Fresh Spring Rolls. Register

May 8th-9th Jeanette Goldfarb Plant Growth Facility Spring Plant Sale at Washington University

3 pm May 8th St. Louis Public Library event at Baden Library: Mocktails and Garden Party. enjoy refreshing mocktails while crafting your own potted plant to take home.

2 pm May 9th St. Louis County Library class at Meramec Valley Branch, Fenton: Growing Herbs in Containers presented by St. Louis Herb Society. Register

9 am May 10th Seed St. Louis Summer Seedling & Sweet Potato Slip Sale at Carriage House, 3815 Bell

8 am to 1 pm May 10th Flora Conservancy Plant Sale @ Greenhouse, Forest Park

9 am to Noon May 10th 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 May 10th St. Louis Hosta Society Show & 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.

9 am to Noon May 10th Illinois Native Plant Society’s Native Plant Sale at Illinois State Fairgrounds, Springfield. It’s only an hour and a half drive or train ride from St. Louis.

10 am May 10th St. Louis County Library event at Meramec Valley Branch, Fenton: Seed & Plant Swap. Register

11 am May 10th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens April 12th

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

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

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

9 am to 5 pm 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.

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

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

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.

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

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

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

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!

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.

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

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.

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

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.

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.

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.

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.