This Week in Gardening and Nature

Plant of the Week: native Ironweed. Beautiful plants, often very tall, loved by pollinators. BUT cut off those spent flower heads before they seed all over your garden or neighbor’s property.

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

Plan your garden with  Seed St. Louis Planting Calendar, good for Zones 6a, 6b, 7a, maybe more.

If you are just looking for St. Louis Area Plant and Seed Swaps and Sales, they are here. Added this week: Plant Sale & Swap at Greenscape Gardens in Manchester MO, Edwardsville IL Library Houseplant Swap, O’Fallon Mo Garden Club’s Neighborhood Plant & Rummage Sale

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

Good Reads/Views/Listens —

Kokedama. Transform your houseplants into art with this Japanese gardening technique (Associated Press)

I Swear By This Easy Watering Tip to Keep My Potted Mums Looking Full and Fresh All Season (The Spruce)

‘Kissing bug’ disease has been found in Missouri. Scientists want the U.S. to take it seriously (St. Louis Public Radio)

Drought is Intensifying in Illinois (Illinois State Climatologist)

Dealing with Climate Change in Our Landscapes (Wild Ones)

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 —–

Fall Color Reports: Illinois and Missouri

Going on Now: Missouri Conservation Annual Tree Seedling Sale. Orders ship out in Spring. 39 Tree Varieties (Dogwoods, Rose Mallow/Hibiscus, Wild Plum as examples) and Bundles (Edible, Nut, Pollinator, Wildlife) still available. 24 Varieties Sold Out.

MU Extension wants your input on Alpha-Gal Syndrome. Tickborne disease can cause allergies to red meat; new survey seeks input to guide education, resources on emerging health issue. Take the survey even if you have not been affected.

Volunteers Wanted. STL Neighborhood Foresters Neighborhood Tree Care Blitzes
September 20th Old North. Register
September 20th Benton Park. Register
September 21st Shaw. Register
September 27th Bevo. Register
September 27th Tower Grove East. Register

September 26th Deadline to Order. Brightside St. Louis Blooming Soon! Tulip & Daffodil Bulb Sale. 30 bulbs only $18: Brightside’s “Midwest Mix” Daffodils – a selection of 6 varieties of fine daffodils chosen by the Greater St. Louis Daffodil Society; Carlton Daffodils; “Brightside Red” hybrid Darwin Tulips; Pink Impression hybrid Darwin Tulips. Order now for October pick up October 10th-11th at Forest Park Greenhouse or pay for mailing.

September 30th Deadline to participate in University of Missouri Extension Online St. Louis City & County Gardening Needs Assessments Survey

November 15th Deadline for Wild Ones’ Lorrie Otto Seeds for Education Program. Open to schools, nature center, after-school care programs, community centers or youth groups in need of funding for a native garden or habitat, projects such as pollinator gardens, rain gardens to improve water quality, tallgrass prairies, native plant monarch waystations featuring community science activities, and sensory and natural playgrounds.

November 15th Deadline to enter Missouri Snapshots Photo Contest sponsored by Missouri State Parks and Association of Missouri Electric Cooperatives’ Rural Missouri magazine. Categories: Parks Less Traveled, Adventure & Recreation, Park Heroes & Volunteers at Work, Learning Something New, On the Trail

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 —–

10 am Wednesday, September 17th, Bellefontaine Cemetery & Arboretum History & Horticulture Trolley Tour with Master Guide. $5 Donation suggested. Register

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

9 am Thursday, September 18th, Heartlands Conservancy’s Volunteer Training: Native Seed Collection with Project Wingspan at Exploration Garden, Clinton Hills Conservation Park, Swansea, Illinois. Register

6 pm Thursday, September 18th, Wild Ones Webinar: EcoBeneficial Landscape Strategies for the Climate Crisis. Register

6 pm Thursday, Septepmber 18th, Seed St. Louis Class at Bell Community Garden: Successful Weed Management. Register

6 pm Thursday, September 18th, Deep Roots KC Webinar: Native Plants- Curious by Nature, Urban Green Roof Gardens Part II. Register

6:30 pm Thursday, September 18th, Heartlands Conservancy Third Thursday Bike Ride. 16 miles on St. Clair County Transit District trails. Register

Volunteers Wanted: 9 am Friday, September 19th, Easterm Missouri Sierra Club event at Ballwin: Castlewood State Park Service Day. Register

3:30 pm Friday, September 19th, Missouri Conservation Department Zoom Class: Native Plants- Seed Sowing Basics. Register

8 am Saturday, September 20th, St. Louis Audubon event at Mississippi Greenway: Beginner Bird Walk. Register

10 am Saturday, September 20th, Bellefontaine Cemetery & Arboretum Arboretum Trolley Tour with Horticulturist. $5 Donation suggested. Register

10 am to 1 pm Saturday, September 20th, Missouri Botanical Garden event: Mary Meachum Freedom Crossing Celebration. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday mornings, otherwise Admission Fee applies.

10 am to Noon Saturday, September 20th, Missouri Coalition for the Environment Annual Meeting & Awards Bruncheon at SqWires. Free MCE members; $45 for non-members. Register/Join

1:30 pm Saturday, September 20th, Join Grow Native! for a Bellefontaine Cemetery & Arboretum Wildwood Valley Walking Tour with James Faupel,  Director of Horticulture and Curator of Living Collections. Register

4-8 pm Saturday, September 20th, Soulard Garden Co-op fundraising event at 2331 S 9th: Garden Party. Food, drink, music, 50-50 raffle.

8 am Sunday, September 21st, Eastern Missouri Sierra Club Birding Hike at Queeny Park, Manchester. 3.5 miles. Register

10 am to 2 pm Sunday, September 21st, 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.

6 pm September 22nd Missouri Conservation Department virtual class: Mighty Monarchs. Register

1 pm September 23rd Bellefontaine Cemetery & Arboretum Arboretum Horticulture Class: Gardening with Native Fruits Trees & Edible Plants. Walking tour + classroom survey of some of our wild food sources in Missouri. $15 Donation suggested. Register

3 Seats remaining. 6 pm September 23rd Missouri Conservation Department workshop at Powder Valley Conservation Nature Center, Kirkwood: Historic & Primitive Skills- Making Cordage Using Natural Materials. Register

6:30 pm September 23rd Illinois Sierra Club Virtual Workshop: Clean Energy for our Communities, status of wind and solar energy throughout Illinois. Register

12 Seats remaining. For Kids 0-7 years. 10:30 am September 25th Missouri Conservation Department event at Tower Grove Park: Conservation Kids, You and Me under the Canopy- Ansty Ants. Register

3:30-6:30 pm September 25th Missouri Prairie Foundation Native Plant Sale at Roeslein & Associates, Crestwood

6 pm September 25th Seed St. Louis Class Virtual Class: Transitioning to Fall Container Gardening. Register

9 am to 2 pm Friday and 8 am to 2 pm Saturday, September 26th-27th, 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.

7-10 pm September 26th Missouri Conservation Department event at Powder Valley Conservation Nature Center, Kirkwood: Moth Ball. Moth BioBlitz for citizen scientists, Crafts at Nature Center, PolliTat Parlour, More. Register

Volunteers Wanted. 8 am September 27th Eatsern Missouri Sierra Club Honeysuckle Removal at the Hall’s Ferry Unit of the Big Muddy National Fish & Wildlife Refuge. Register

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.

10 am September 27th St. Louis County Library Plant & Seed Swap at Oak Bend Branch. Refreshments.

10 am to 1 pm September 27th Mary Meachum Freedom Crossing Celebration at Mississippi Greenway

10 am to 3 pm September 27th Missouri Pollinator Network Pollinator Palooza at Weldon Spring Site Interpretive Center, St. Charles MO. Missouri Wildflowers Nursery and other native plant vendors will be selling there.

11 am and 1 pm September 27th Missouri Botanical Garden concert at Sachs Museum: Musical Scents- Voices in the Garden, performances by Benedetta Orsi and St. Louis Women’s Chorale. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

11 am to 4 pm September 27th STL Seeding Frenzy’s Homesteaders Hoedown, Exchange & Tool Swap at Watson Trail Park, Sunset Hills

Noon to 3 pm September 27th Edwardsville IL Public Library Houseplant Swap. Noon and 1 pm drop off your houseplants, clippings, unused garden seeds to give them a second life. Those who drop off a plant will have priority access to the swap.

1 pm September 27th St. Louis County Library Plant Swap at Grand Glaize Branch, Manchester

For Kids 6-11 years of age, caregiver must attend. 2 pm September 27th St. Louis Public Library from Schlafly Library to Forest Park: Nature Art Walk.

4-7 pm September 27th Forest ReLeaf Fundraiser: Arbormeisters

September 27th Heartlands Conservancy Trout Hollow Hill Prairie Anniversary Tours in Waterloo, Illinois.  9:30 am Tour- Register. 11:15 am Tour- Register.

2-6 pm September 28th LongStory Coffee’s fundraiser for Belleville Heart Garden: Harvest Festival, Year of the Bumblebee at High Street between LongStory Coffee and Garden. For Kids: Paint-a-Pot, Garden Scavenger Hunt, Bird Feeder Craft. Music by Mellow D. Food & Beverages & Merch vendors. Garden Tours. More.  

September 28th U City in Bloom’s Plein Air Festival and Garden Tour. $25.

1:30 pm September 30th University of Illinois Extension Webinar: Be a Seed Shaker: Which Are Worth Saving? Register

Registration Begins: 9 am October 1st Heartlands Conservancy 2025 Jingle Hike Challenge

10 am October 1st Bellefontaine Cemetery & Arboretum History & Horticulture Trolley Tour with Master Guide. $5 Donation suggested. Register

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

6 pm October 1st Edwardsville IL Library class: Canning with Confidence

23 Tickets remaining. 9 am October 2nd Missouri Conservation Department hike in St. Louis City: North Riverfront Park Hike. 3 miles. Register

6 pm October 2nd Deep Roots KC Webinar: Native Plants- Curious by Nature, Native Gardening with Pop Culture Aesthetics Gardening. Cottage-Core to Goth and Mid-Century Modern to Tropical. 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.

10 am to 1 pm October 4th The Nature Institute event at Godfrey, Illinois: Forest Fest 

3-7 pm Friday and 9 am to Noon Saturday, October 3rd-4th, O’Fallon Mo Garden Club’s Neighborhood Plant and Rummage Sale. Perennials, natives, bulbs, houseplants

10 am to 3 pm October 4th Willoughby Farm’s Fall Farm Day at Collinsville, Illinois. $3 per person.

11 am to 6 pm October 4th Tower Grove Park event: Chuseok Korean Harvest Festival

7 pm October 4th St. Louis Astronomical Society event at Tower Grove Park: Stargazing

Noon to 4 pm October 4th Benton Park Neighborhood Association event: Benton Park Tunes on Tap – A Musical Garden Tour. Six home gardens. Live music and drinks from local breweries. Tickets $35 General Admission, $65 VIP. Advance sales end September 14th. Register

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

19 Seats remaining. 1 pm October 4th Misssouri Conservation Department craft event at Powder Valley Conservation Nature Center, Kirkwood: Nature Art- Leaf Print Bandanas. Includes 1/3-mile walk on Tanglevine Trail to collect leaves. Register

28 Tickets remaining. 6:30 pm October 4th Missouri Conservation Department hiking event at Columbia Bottom Conservation Area: Hunter’s Moon Walk to the Confluence. Register

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

23 Tickets remaining. 6 am October 5th Missouri Conservation Department event at Powder Valley Conservation Nature Center, Kirkwood: Birds & Brews- Birding Hike with Coffee. Register

7 pm October 6th The Nature Institute event at trails of the Mississippi Sanctuary and Olin Nature Preserve, Godfrey, Illinois: Moonlight Hike. Register

Volunters Wanted. 9 am October 8th Heartlands Conservancy event in Edwardsville, Illinois: Poag Sand Prairie Restoration Stewardship Day. Register

6:30 pm October 8th Piasa Pallisades Sierra Club virtual author event:  Jeff Biggers’ “Reckoning at Eagle Creek,” a discussion with award-winning journalist and cultural historian. Register

25 Tickets remaining. 9 am October 9th Missouri Conservation Department hike in St. Louis City: Lafayette Park Hike. 1.5 miles. Register

5:30 pm October 9th Seed St. Louis Class at Bell Community Garden: Food All Winter- Harvesting & Storing Fall Crops. Register

Volunteers Wanted. 9 am October 10th Heartlands Conservancy event in Clinton Hills Conservation Park, Swansea, Illinois: Exploration Garden Volunteer Stewardship Day. Register

1 pm October 9th Missouri Conservation Department Virtual Class: Wild Edibles- May the Forage Be With You. Learn about hickory nuts, chestnuts, walnuts and wild fruits like pawpaws, persimmons and grapes. Register

4-7:30 pm October 10th St. Louis Community College @ Meramec HortiCULTURE Exchange Open House & Self Guided Tours

8 am to 12:30 pm October 11th St. Louis Community College @ Meramec HortiCULTURE Exchange Transforming Community Symposium with keynote speaker Doug Tallamy, entomologist, ecologist, and author.

10:30 am October 11th Seed St. Louis Class at Bell Community Garden: Building a Children’s Garden. Register

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

11 am and 1 pm October 11th Missouri Botanical Garden event at Sachs Museum: Poetry and Scents, the poetry of Devin Johnston. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

10 am to 2 pm October 12th Sustainable Backyard Network Fall Fest Sustainability Fair & Native Plant Sale at Garden Chapel Sanctuary, St. Louis County. Event isn’t under their calendar, scroll down link for the event flyer

2 pm October 14th St. Louis County Library Virtual Class: Fall Gardening Wrap-Up presented by Seed St. Louis. Register

4:30-9:30 pm October 14th The Royale & Missouri Botanical Gardens’s Show Me Your Harvest Cocktail Competition 2025 at The Royale. Tickets $45. Register

6 pm October 14th Missouri Conservation Department Virtual Class: Historic & Primitive Skills, Bushcraft Skills Series- Advanced Friction Fire. Learn about Hand Drill, Pump Drill, Fire Saw, and other methods used to start fires. Register

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

1 pm October 16th University of Illinois Extension Webinar: Uncovering the Winter Secrets of Whip-poor-wills. Register

6 pm October 16th Wild Ones Virtual Event: Next Steps for Nature presented by entomologist and ecologist Doug Tallamy. Register

6 pm October 16th Deep Roots KC Webinar: Native Plants- Curious by Nature, Native Gardening with Pop Culture Aesthetics Part II. Cottage-Core to Goth and Mid-Century Modern to Tropical. Register

6:30 pm October 16th Heartlands Conservancy Third Thursday Bike Ride. 16 miles on St. Clair County Transit District trails. Register

6-9 pm October 17th Urban Harvest Raise the Roof fundraiser at Sally’s Rooftop Garden & Terrace, Grand Center. Tickets $60.54. Register

24 Seats remaining. 6 pm October 17th Missouri Conservation Department event at Tower Grove Park: Conservation Adults- Fall Paint and Sip. Register

9 am October 18th Seed St. Louis Garlic, Shallot, Plant Sale at Carriage House, 3815 Bell. Also selling overwintering cover crop seeds and Dig Annuals & Perennials will be selling perennials, shrubs, trees.

10 am to Noon October 18th Forest Releaf event at Scott Joplin House: Persimmon Festival and Tree Distribution

10 am October 18th Heartlands Conservancy event at Storck Woods Nature Preserve, Washington County, Nashville, Illinois: Woods Walk. Register

1:30 pm October 21st University of Illinois Extension Webinar: Reclaiming Runaway Landscapes. Register

2 pm October 21st St. Louis County Library Virtual Class: Composting 101 presented by Seed St. Louis. Register

23 Tickets remaining. 9 am October 23th Missouri Conservation Department hiking event in St. Louis City: Walk in the Park: Willmore Park. 1.5 miles. Register

9 am to 2 pm Friday and 8 am to 2 pm Saturday, October 24th-25th, 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.

5-8 pm October 25th Seed St. Louis event at Bell Community Garden: Fair on the Farm & Chili Cook Off

17 Tickets remaining. 8:30 am October 26th St. Louis Audubon Society event at Tower Grove Park: Beginner Bird Walk. Register

2 pm October 28th St. Louis County Library Virtual Class:  Indoor Food Gardening presented by Seed St. Louis. Register

7 pm October 29th Eastern Missouri Sierra Club and Olivette Parks & Recreation event: Building Community Through Sustainability- A Grassroots Journey presented by Kate Pichon-Hellmann, Olivette Sustainability Advocates. Register

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

Volunteers Wanted. 9 am November 2nd Heartlands Conservancy event at Waterloo, Illinois: Trout Hollow Hill Prairie Volunteer Stewardship Day. Register

11 am November 8th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens October 11th

11 am to 3 pm November 8th Greenscape Gardens event in Manchester: Plant Sale & Swap. Check back for more info.

November 15th to January 3rd Missouri Botanical Garden exhibit at Emerson Conservatory: Holiday Flower and Train Show. Garden Admission Free to St. Louis City and St. Louis County residents on Saturday and Wednesday morning, otherwise Admission Fee applies.

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

9 am to 2 pm Friday and 8 am to 2 pm Saturday, December 12th-13th, 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 December 13th St. Charles City-County Library Plant & Seed Swap at Spencer Road Branch. Register, registration opens November 15th

11 am to 4 pm January 24th 15th Annual STL Seeding Frenzy Seed Swap at Sunset Hills Community Center, 3915 South Lindbergh Blvd. Seed Swap, Vendors, Raffle. Lable seeds. If you do not have seeds to swap, donate non-perishable food items, hygiene products or new kids socks and underwear for charity. This is a FB event that someone sent me information on but I don’t share FB links.

The last #GardenSunday hosted by me on Bluesky was August 31st due to inability to draft posts (please don’t suggest adding another app to make Bluesky work better) and dwindling active accounts from St. Louis area. I appreciate everyone who participated in Garden Sunday for 181 weeks on Twitter and then 40 weeks on Bluesky. We had a good run. It was a lot of fun and I learned much from and was inspired by so many gardeners and nature lovers. St. Louis Area Plant and Seeds Sales and Swaps and This Week in Gardening & Nature will continue on this blog and links posted to Bluesky. Should Bluesky make changes, such as ability to draft posts, would consider bringing back Garden Sunday.