Find out about the latest Colorado gardening classes, events, and plant sales here. We will update this page regularly with new events or cancellations.
EMAIL COLORADO GARDENING EVENTS TO COGARDENER@GMAIL.COM
PLANT SHOWS & SALES
Harlequin's Gardens Fall Plant Sale
Tues, Aug 30-Fri, Sept 30
HarlequinsGardens.com 4795 N. 26th St, Boulder, 303-939-9403.
Rocky Mt African Violet Council Plant Sale
Sat, Sept 24
African Violet, Streptocarpus & other gesneriads. 9-1 at Tagawa Garden Center, 7711 S. Parker Rd, Centennial.
Denver Botanic Gardens Fall Plant & Bulb Sale
Fri-Sat, Sept 30-Oct1
9-5. Preview party Thurs, Sept 29, tix on sale late Aug. Plant sale tix start early Sept., 1007 York St, Denver. BotanicGardens.org, 720-865-3500.
GARDEN TOURS, FESTIVALS & EVENTS
Phelan Gardens TGIF with Colo Native Plant Society
Fri, Sept 16
2-4; Free. PhelanGardens.com or 719-574-8058. 4955 Austin Bluffs Parkway, Colo Springs, 80918.
Corn Maze at Chatfield Farms
Fridays-Sundays, Sept 16-Oct 30
9-5; Tix available early Sept, advanced sales for members, no onsite sales. DBG Chatfield Farms, 8500 W Deer Creek Canyon Rd, Littleton. BotanicGardens.org; 720-865-3500.
Colo Native Plant Society (CoNPS) 19th Annual Rare Plant Symposium
Fri, Sept 16
8-4; $10 (precedes Annual Conference).
CoNPS Annual Conference, "From Peaks to Prairie: Exploring Diversity & Disturbance in Front Range Ecosystems."
Sat-Sun, Sept 17-18
Sat, 9-5; Sun field trip times vary. Sponsored by Boulder Chapter. Longmont Museum, 400 Quail Rd, Longmont. Visit CONPS.org for agenda & to register for activities. In-person & virtual options.
Agriculture Festival at Plains Conservation Center
Sat, Sept 24
10-4; Celebrate food, nature & agriculture; wagon rides, 1880s homestead village & tipi camp tours, farmer's market & more. $5/vehicle. Info: AuroraGov.org/PlainsCenter. 21901 E. Hampden Ave. Aurora.
Jared's Nursery 16th Annual Giant Pumpkin Weigh-off
Sat, Sept 24
10-4; contest, food trucks, music, kids' activities, giant pumpkin drop. Free admission & parking. 10500 W Bowles Ave, Littleton. Details: JaredsGarden.com. 303-979-6022.
Harlequin's Gardens Holiday Gift Market
Sat, Oct 1-Sun, Oct 30
See newsletter or HarlequinsGardens.com for details. 4795 N 26th St., Boulder. 303-939-9403.
Nick's Garden Center Annual Giant Pumpkin Contest
Sat, Oct 1
11-2; see NicksGardenCenter.com for details. 2001 S Chambers Rd, Aurora. 303-696-6657.
Pumpkin Festival at Chatfield Farms
Fri-Sat, Oct 7-9
9-4; Advanced tix sales start mid-Sept. No onsite sales. Details at BotanicGardens.org; 720-865-3500. Chatfield Farms, 8500 W Deer Creek Canyon Rd, Littleton.
Fort Collins Nursery 14th Annual Giant Pumpkin Weigh-off & Fall Jamboree
Sat, Oct 8
10-3; growers compete for awards & cash prizes. Details at FortCollinsNursery.com; 970-482-1984; 2121 E Mulberry, Fort Collins.
Growing Gardens Community Harvest Festival
Wed, Oct 12
4-7 pm; Free (with suggested donation of $5-10/family). Rain date Oct 19. Hawthorn Farm, 1630 Hawthorn Ave, Boulder. Info: GrowingGardens.org. 303-443-9952.
The Gardens on Spring Creek 3rd Annual Pumpkins on Parade
Thurs, Oct 20-Sun, Oct 23
10-5 daily. All-ages celebration of Halloween & the harvest. $8-11, members free. 2145 Centre Ave, Fort Collins. Info: FCgov.com, 970-416-2486.
SEED SWAPS - People & Pollinators Action Network & Wild Ones (free admission)
Denver Native Seed Swap & Giveaway, 10am -1pm, The Table Public House, 2190 S. Platte River Drive, Denver, 80223
Colorado Springs Native Seed Share, 10am -1pm, Garden of the Gods Visitor Center, 1805 N 30th St, Colorado Springs, 80904
Fort Collins Native Seed Swap & Giveaway, 10am -1pm, Wolverine Farm Publick House 316 Willow St, Fort Collins, 80524. Partners: PPAN, Native Plant Society of No CO, League of Women Voters Pollinator Habitat Group, Nature in the City, City of Fort Collins, Audubon of the Rockies, Wildlands Restoration, Wild Ones
More information on how to collect & clean seeds can be found here:
CLASSES, WEBINARS & WORKSHOPS
Cheyenne Botanic Gardens
9/24: Learning About Hops (21+). 2-3. $25. Details & Registration at Botanic.org. 307-637-6458. 710 S. Lions Park Dr, Cheyenne, WY 82001.
CSU Extension Free Webinars
Free online classes begin at noon. 10/12: Great Plants for Fall Color. 11/9: A Gardening Year in Review. Register at: CSUhort.blogspot.com.
Colorado Native Plant Society
Sign up for workshops, webinars, conferences, field trips & presentations about CO native plants, habitats & gardening. See event calendar: Conps.org.
CO Water Garden Society
10/20: Season Wrap-up, What Worked & What Didn't. 6-7pm potluck; presentation 7pm. Freyer-Newman Center, DBG, 1007 York St, Denver. Details: ColoWaterGardenSociety.org.
Denver Botanic Gardens
Check botanicgardens.org for complete class listings, registration information & fees. 1007 York St, Denver.
Denver Rose Society
10/13: Roses & Semi-Shaded Spaces w/Master Rosarian Mary Kirby 8-5. 10/22: Putting Your Rose Garden to Bed. 10-noon ($30 members or $36). DBG Freyer-Newman Center, 1007 York St, Denver. Details & registration DenverRoseSociety.org.
Denver Urban Gardens
1325 Colorado Blvd, Denver
Through Oct. 8 - Learn to Compost (Free)
Sponsored by City & Cnty of Denver & DUG, composting and vermicomposting classes. See schedule & register at DUG
Echter's Garden Center
5150 Garrison St, Arvada, CO
Free classes. 9/17: Indoor Plants 101. 10-11. Growing Great Garlic. 2-3. 9/24 Orchids--Exotic, but Easy. 2-3. See Echters.com for details & updates. 303-4214-7979.
The Gardens on Spring Creek
2145 Centre Ave, Fort Collins
Check FCgov.com or 970-416-2486 for class listings & fees.
Harlequin's Gardens & Sustainable Nursery
4795 N. 26th St., Boulder, 303-939-9403
9/18: Low Tech Greenhouse Design & Operation w/Mikl Brawner. 1-2:30; $20. Visit HarlequinsGardens.com for details. Registration required.
High Plains Environmental Center
Check suburbitat.org for class schedule, trail & bird walks. 970-622-9676.
Rocky Mt Seed Alliance Online Classes
Details: RockyMountainSeeds.org, 970-560-5486.
Ongoing - Seed School 101 & Grain School 101
7711 S. Parker Rd., Centennial; 303-690-4722.
Sign up for the newsletter to get info about classes & special events: TagawaGardens.com
The Windsor Gardener (& Brewery) Classes
6461 Colorado Hwy 392, Windsor, CO
Sat, Oct 1st: Sipping with Succulents Saturday 10:30am-12pm. Join us, High Hops Brewery and The Heart Distillery for a super popular class on succulents and cactus. Then get your hands dirty and plant your very own succulent garden to take home while you sip on a select beer or cocktail. Must be 21+. Tickets: $40 at https://www.eventbrite.com/e/sipping-with-succulents-tickets-412496015687
Sat, Oct 22: Tipsy Terrariums, 10:30-12pm. Grab a drink and plant your own terrarium. Includes a glass terrarium, plants, soil, and all you need to create and care for your terrarium, plus a beer from High Hops Brewery or select cocktail from The Heart Distillery. A 21+ event.
SAVE THE DATE!
2022 CSU Spur Water in the West Symposium
Wed-Thurs, Nov 2-3
Seawell Ballroom, Denver. Details at CSUspur.org/witw.
CSU Food Systems 2022 Colorado Food Summit, Denver
Thurs, Dec 8
Subscribe to stay up-to-date at FoodSystems.colostate.edu.
8th Annual Landscaping with Colo Native Plants Conference
Sat, Feb 25, 2023
Keynote speaker Dr. David Inouye. Registration for this VIRTUAL Zoom event opens early Dec. 2022. Info at LandscapingwithColoradoNativePlants.org.