August is harvest month in Missoula.
The tomatoes you’ve been babying since May finally start ripening, the zucchini won’t quit, and the markets are as loaded as they get all year. It’s also the month to start thinking ahead: saving seeds, taking notes on what worked, and keeping everything watered through the hottest stretch of the season. There’s a lot happening around town this month, from hands-on workshops to one of the biggest farm celebrations of the year.
Here are the plant and garden events worth knowing about in Missoula this August.
1. Missoula Farmers’ Market (Saturdays and Tuesdays)
Days: Saturdays 8:00 AM – 12:30 PM and Tuesdays 5:00 – 7:00 PM (through September)
Location: Circle Square, corner of Railroad and North Higgins Ave
If you only make it to the market a few times a year, August is the month to go. This is peak harvest in Missoula: tomatoes, sweet corn, peppers, cucumbers, melons, and just about everything else all show up at once. The tables that held starts and greens back in spring are now stacked with the full payoff of the season.
It’s also a useful check on your own garden. If a vendor’s tomatoes are weeks ahead of yours, ask them what varieties they grow. Most Missoula growers are happy to talk, and variety choice matters more here than almost anywhere, since our season is short and the right tomato for Iowa is usually the wrong tomato for Montana.
2. Clark Fork River Market (Saturdays)
Day: Saturdays, 8:00 AM – 1:00 PM (through October)
Location: 225 S. Pattee St., along the river downtown
The Clark Fork River Market is the bigger of the downtown Saturday markets, with produce alongside meat, baked goods, flowers, prepared food, and local makers. In August the flower growers are at their best, and the produce tables match anything you’ll see all year.
It runs the same morning as the Saturday Farmers’ Market a few blocks up Higgins, so plenty of people do both in one trip. Go early if you want first pick. By late morning in August, the popular stands are picked over.
3. Plant Baby Plant: A Bloom with Robin Wall Kimmerer
Date: Sunday, August 2, 2026
Time: 9:00 AM – 1:00 PM
Location: Fort Missoula Native Plant Garden, 404 H Road
Cost: Free, registration required
This one is special. Robin Wall Kimmerer, the author of Braiding Sweetgrass, is coming to the Native Plant Garden at Fort Missoula for a free morning event. If you’ve read her writing, you already know why that’s a big deal. If you haven’t, she’s a botanist and one of the most influential voices anywhere on the relationship between people and plants.
A free event with an author this well known will fill up, so register through the Montana Natural History Center as soon as you can if you want to go. Spending a morning in a mature native garden with someone who thinks about plants this deeply is not an opportunity Missoula gets every summer.
4. Garden City Harvest River Road Farmstead Tour
Date: Tuesday, August 4, 2026 (first Tuesday of the month)
Time: 4:00 – 5:00 PM
Location: River Road Farmstead, 1657 River Road
Garden City Harvest walks visitors through the River Road Farmstead on the first Tuesday of each month, and the August tour catches the farm in full harvest mode. River Road is one of their oldest and most diverse sites, and this time of year you’ll see what a productive organic operation actually looks like when everything is coming in at once.
It’s an easy hour with the people who run the place, and they’re generous with what they’ve learned about growing food in this valley. If your own beds are struggling with something, odds are good they’ve dealt with it too.
5. Tomato Breeding with William Schlegel
Date: Tuesday, August 11, 2026
Time: 6:00 – 8:00 PM
Location: Lupine Lab, Exploration Center, 1075 South Avenue West
Cost: $15, registration required
William Schlegel is an independent tomato breeder working on varieties adapted to Montana’s climate, including Mission Mountain Sunrise. In this Missoula County Extension workshop you’ll learn why breeding tomatoes for our short season matters, then head out to the tomato trials and actually make a cross yourself: dissecting a flower, removing the anthers, and moving pollen from one plant to another.
If you’ve ever wondered why some tomatoes thrive here while others sulk until the September frost takes them, this is two hours that will change how you pick varieties. Hands-on plant breeding classes almost never come to town, and fifteen dollars is a bargain for one.
6. Seed Saving Basics
Date: Thursday, August 13, 2026
Time: 6:00 – 8:00 PM
Location: Lupine Lab, Exploration Center, 1075 South Avenue West
Cost: $10, registration required
August is exactly the right time for this class, because seed saving starts in the garden now, not in the fall. Instructor David Lau has spent 15 years farming organic vegetables, most of it right here in the Missoula and Bitterroot valleys, and he grows seed for the Snake River Seeds Cooperative. He’ll cover why saving seed matters, the basic botany behind it, and how to actually collect and clean seed from your own garden, with hands-on practice included.
Seed you save from plants that did well in your yard is seed that’s already proven it can handle your soil, your microclimate, and a Missoula season. Do this for a few years and you end up with varieties quietly customized to your own backyard.
7. Garden City Harvest Farm Party 2026
Date: Thursday, August 13, 2026
Time: 5:30 – 9:00 PM
Location: PEAS Farm, 3010 Duncan Drive
Cost: Adults $39 in advance ($45 day of), kids 4-10 $19 ($23 day of)
Garden City Harvest turns 30 this year, and the Farm Party at the PEAS Farm is the celebration. It’s an evening out in the fields where the whole organization started: a farm-fresh dinner built from local ingredients, live music from two bands, and farm tours and tastings as the sun goes down over the Rattlesnake.
Fair warning, it lands the same evening as the seed saving class, so you’ll have to pick one. If you want the classroom, save your seeds. If you want dinner in a farm field with a few hundred neighbors who care about local food, this is the night. Tickets are cheaper in advance, and this one tends to draw a crowd.
8. Fort Missoula Native Plant Garden Volunteer Mornings
Dates: Select Sundays in August (August 9 is on the calendar; check the MNHC page for later dates)
Time: 9:00 – 11:00 AM
Location: Fort Missoula Native Plant Garden, 404 H Road
Cost: Free
The Sunday volunteer mornings at the Native Plant Garden run through the end of summer, and August is the last full month to catch them. You’ll weed, transplant, and help keep the garden going alongside Montana Natural History Center staff who know these plants well. It’s free, low pressure, and the fastest way to learn which natives would actually work in your own yard.
The garden also hosts a nature journaling session on August 11 and a wildflower watercolor morning on August 25, both 9:00 to 11:00 AM, if you’d rather bring a sketchbook than a pair of gloves. Those two cost $20 for MNHC members and $25 for everyone else.
August is the month Missoula gardens pay you back, and the month they need you most. Deep watering, steady harvesting, and a few notes on what to do differently next year go a long way right now. If the garden has gotten ahead of you, or the plants at your business are wilting while you handle everything else, that’s where we come in.
Whether you want help from a Missoula plant care specialist or you’re ready to build a vegetable garden that actually works in this climate, Garden City Plant Care is here to help.