Colorado Gardener Calendar
2026 GARDENING WORKSHOPS, CLASSES, WEBINARS & EVENTS
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CLASSES & WORKSHOPS
​Bath Garden Center
2000 East Prospect, Fort Collins
May 3: 12-2pm, Mother's Day Floral Arrangements
Blue Shed Urban Gardens
1064 South High St, Denver
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Brigitte Mars, Boulder Herbalist
text 720-633-0790 for information
May 30, 10-Noon, Urban Herb Walk
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Butterfly Pavilion
Pollinator Gardening Boot Camp
6252 W. 104th Avenue, Westminster
butterflies.org/pollinator-gardening-bootcamp-2026
May 17, July 7: Pick and choose the workshops or take all five for bundle discount. $35 per workshop.​
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CSU Extension Gardening Webinars
Free, advanced registration required.
planttalk.colostate.edu/webinars
May 13: Myths, Mistakes, Misunderstood Insects
Jun 10: All the Common Weeds & What They Tell You
CSU Ext Jeffco Native Plant Master
conativeplantmaster.colostate.edu
Various locations in: Littleton/Golden/Evergreen/Morrison
May 1: 9am-12:30pm, Cottage Food Certification Class
May 13: 2-3:30pm, Beekeeping 101
May 29: 8am-Noon, 3 Season Grasses
Colorado Native Plant Society
Webinars, workshops, field trips & events
May 23: 8am-5pm, Annual Conference - Coloradoscape with Natives, CMU University Center Ballroom, 1455 N 12th Street, Grand Junction
Registration: conps.org
Colorado State University Food Systems
The Local & Regional Foods Resources & Research Webinar Series
Denver Botanic Gardens
1007 York St, Denver, botanicgardens.org
Ongoing Classes and Events
The Gardens offers tours, classes, events, plus certificates in Herbalism, Rocky Mountain Gardening & Beginning Market Farming.
Apr 30: 5:30-7:30pm, Colorado Native Plants Webinar, with CoNPS
May 2: 10am-Noon, Gardening for Pollinators​
May 2: 1-2pm, Totally Tomatoes
May 7: 9:30-11:30, Creating Green Roofs
May 16: 9:30-1pm, Edible Wild Foods Workshop
May 19: 4-6:30, Tree ID and Selection (2 sessions)
May 30: 9:30-11:30am, Vines and Groundcovers
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Denver Park Trust
Apr 29: 8-11am, Volunteer Planting Native Plants and Shrubs at Argo Park, 4800 Grant St, Denver
denverparktrust.org/open-volunteer-registration/
Denver Rose Society Events & Presentations
Aug 8: 10-12pm, Propagating Roses
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Denver Urban Gardens (DUG)
dug.org/learn/workshop-calendar​​​
May 30: 9-11am, Basics of Organic Gardening
June 6: 9-11am, Learn to Compost (note: sells out quickly)
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The Flower Bin
Classes & Events
1805 Nelson Rd, Longmont, theflowerbin.net
City of Fort Collins
fortcollins.gov/waterwise
Sustainable Landscape Series
May 9: Free Mulch Day
June 6: 10-1pm, FoCo EcoFest & Xeriscape Garden Party at Washington Park
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Echters Garden Center
www.echters.com
5150 Garrison St, Arvada​​​​​
​FEATURED EVENTS​
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Garden Club of Denver presents
the Colorful Colorado Flower Show - celebrating Colorado's 150th statehood anniversary
Thurs, June 4, 9am-4pm
at Denver Botanic Gardens, York St.
Horticulture, Floral Design, Botanical Arts, Photography, Children's Creations & more.
More info: gardenclubofdenver.com
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​Fort Collins Nursery
2121 East Mulberry, Fort Collins
970 482-1984, fortcollinsnursery.com
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Growing Gardens
1630 Hawthorn Ave, Boulder • 303.443.9952
growinggardens.org/classes​
Harlequins Gardens Sustainable
Nursery & Garden Center
303-939-9403 (Retail), 4795 North 26th St, Boulder
harlequinsgardens.com . Classes are $25.00
May 9: 10:30-Noon, Edible Lawns with Brigitte Mars
May 9: 1-2:30pm, Science-Based Sustainable Landscaping
May 16: 1-2:30pm, Fire-Wise Landscaping
May 17: 10-11:30am, Small Space & Container Gardening
May 17: 1-2:30pm, Berries & Small Fruits for Colorado
June 7: 1-2:30pm, Water-Wise Landscaping, Mikl Brawner
High Plains Environmental Center
2698 Bluestem Willow Drive, Loveland
May 16: 9-Noon, Restoration Ecology
May 23: 10-Noon, Native Bees
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Jared's Nursery
10500 W Bowles Ave, Littleton
jaredsgarden.com/event-calendar
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Mod Mountain Spectacular
Seed Library Pop-up
215 Wilcox St, Castle Rock
Sat, May 9: Seed Library Pop-up
facebook.com/share/17YHL82aEz/
Mountain Roots Gardens
Container Garden Parties
Thurs, May 28, 5 pm, 8275 CO Rd 54, Milliken
https://mountainrootsgarden.com
Bring your own containers and beverages. We will provide snacks, and soil & snacks for the soil, & design ideas so you can design your containers in store.
Nick’s Garden Center
2001 S Chambers Rd, Aurora, CO 80014
nicksgardencenter.com
Phelan Gardens
4955 Austin Bluffs Parkway., Colorado Springs, CO
More events at: phelangardens.com
May 7: 4pm, New to Colorado Gardening
May 26: 4pm, Growing Fruits in the Pikes Peak Region
​​​​​​​​People and Pollinators
Action Network Events (PPAN)
Free webinars and events. For more events, visit:
peopleandpollinators.org/calendar
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Purely Ponds, Colorado Springs
719-896-0038
https://purelyponds.com/parade-of-ponds/
June 27: 9am-5pm, 20th Anniversary Self-Guided Pond and Waterfall Tour Benefiting Boys & Girls Club, $5
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Resource Central, Boulder
Online and In-Person Workshops & Classes
Apr 28: 6:30-8pm, Vegetable Gardening in Colorado
May 6: 6:30-8pm, Create a Pollinator Friendly, Water Efficient Garden
May 17: 6:30-8pm, Native Plants for Mountain Gardening
May 19: 6:30-8pm, Insects and Your Garden
May 20: 6:30-8pm, Managing Your Yard During Drought
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Rick's Garden Center
1827 West Uintah St, Colorado Springs, CO
719.632.8491, ricksgarden.com
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Wildlands Restoration Volunteers Workshops & Volunteering Events
Various locations. Info at: wrv.volunteerhub.co
May 9: Commerce City – Commerce City River Cleanup
May 15: Longmont - Native Plant Restoration
May 16: Commerce City - Tree Planting and Care
PLANT & SEED SWAPS
Front Range Wild Ones Swaps
Native Plant Seed Swaps, Webinars, Workshops
Northern Colorado Native Plant
Swap & Giveaway
Fort Collins Xeriscape Garden Party & EcoFest at City Hall, 300 Laporte Ave, Fort Collins, CO
June 6: 11am-2pm (Free, open to Public)
More swaps & events: frontrange.wildones.org/events
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Denver/Aurora Plant Swap & Garden Tour
May 16: 4-6pm, Member House, Littleton. Check website for registration and location​
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Denver Garden Exchange
Tue May 19: 5-7pm, Ye Olde 121 Public House, 1057 S. Wadsworth Blvd
Community seedling swap; bring canned goods for donation. Coordinated by Alpine Eatery
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PPAN: North Metro Native Plant Giveaway
Free and open to the public. Chemical-free plant donations and exchanges welcomed!
May 16: 10am-1pm
Stonehocker Farm House
10950 Fox Run Pkwy, Northglenn, CO
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