2026 GARDENING WORKSHOPS, CLASSES, WEBINARS, TOURS & EVENTS
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OCTOBER
Sat
10
October 10 @ 9:00 am – 11:00 am
Learn to Compost
Denver Urban Gardens | Gove Community Garden, 1325 Colorado Blvd., Denver, CO 80206
Learn the basics of backyard composting and how to turn food scraps and end-of-season garden material into nutrient-rich compost for healthier soil. Registration is required.
Event link: https://dug.org/event/2026-october-learn-to-compost/
Sat
10-11
Oct 10 @ 10:00 am – 4:00 pm | Oct 11 @ 11:00 am – 3:00 pm
Pikes Peak Bonsai Show 2026
Phelan Gardens / Pikes Peak Bonsai Society | 4955 Austin Bluffs Pkwy., Colorado Springs, CO 80918
A two-day bonsai exhibition with guided tree tours, live bonsai demonstrations, grower Q&A, and bonsai and pre-bonsai material for sale. Guided tours begin at 9:30 am both days; demonstrations are scheduled at 10:00 am and 2:00 pm.
Price: Free admission
Event link: https://www.eventbrite.com/e/pikes-peak-bonsai-show-2026-at-phelan-gardens-tickets-1997390370366
Sun
11
Oct 11 @ 3:00 pm – 5:00 pm
Garden on the Move – Special CCSS Film Screening & Discussion
Colorado Cactus & Succulent Society | Sturm Auditorium, Denver Botanic Gardens, 1007 York St., Denver, CO 80206
Join the Colorado Cactus & Succulent Society for a screening of Garden on the Move, documenting the relocation of thousands of plants from the Wallace Desert Garden to Boyce Thompson Arboretum. After the film, Lee Brownson and Jason Wiley will share firsthand insights into relocating, establishing, and caring for this remarkable desert plant collection.
Price: Free and open to the public
Tues
13
October 13 @ 4:30 pm – 6:30 pm
Gardening with Medicinal Herbs in Colorado
Denver Botanic Gardens | York Street, 1007 York St., Denver, CO 80206
Learn Colorado-specific techniques for soil and compost, seed starting, climate, propagation and transplanting, along with medicinal and therapeutic plants that perform well in the state’s challenging climate.
Price: $44; $39 member
Event link: https://tickets.botanicgardens.org/events/6804d2af-04a7-d5c0-98e4-308551aee43a
Wed
14
October 14 @ 12:00 pm – 1:00 pm
Spooky Plant Pathogens: Creepy Cases from the Garden
CSU Extension Gardening Webinars | online
A Halloween-themed plant pathology webinar with CSU’s Drs. Jen Rushton and Emily Luna, featuring fungi, bacteria and other plant diseases that gardeners may encounter.
Price: Free; advance registration required
Event link: https://planttalk.colostate.edu/webinars/
Wed
14
October 14 @ 12:00 pm – 1:00 pm
Pollinators & Waterwise Landscapes
Resource Central | Online via Zoom
Explore the link between pollinator habitat and water conservation in Colorado, including research on replacing turfgrass with native, waterwise plantings and the potential for yard-scale changes to create pollinator corridors.
Price: Free
Event link: https://resourcecentral.org/event/waterwise-yard-seminars-pollinator-and-waterwise-landscapes/
Fri
16
October 16 @ 2:00 pm – 4:00 pm
Garden Leader Training: Winterizing
Denver Urban Gardens | Greenway Community Garden, 7790 E. 23rd Ave., Denver, CO 80238
A seasonal training focused on preparing community garden spaces for winter. This program is listed for DUG garden leaders and tree keepers.
Event link: https://dug.org/event/2026-october-glt-winterizing/
Sat
17
October 17 @ 9:30 am – 3:30 pm
Orchid Obsession
Fort Collins Nursery / Northern Colorado Orchid Club | 2121 E. Mulberry St., Fort Collins, CO 80524
A full day of orchid education and shopping, including an orchid sale and display, Orchids 101 seminar, repotting demonstration, orchid-care Q&A and an open Northern Colorado Orchid Club meeting.
Event link: https://fortcollinsnursery.com/event/orchid-obsession-featuring-fantasy-orchids-noco-orchid-club/
Sat
17
October 17 @ 9:30 am – 3:30 pm
Beginning Bonsai
Denver Botanic Gardens | York Street, 1007 York St., Denver, CO 80206
Learn the history and techniques of bonsai in a hands-on class with Colorado bonsai artists. Participants receive a tree, pot, wire, soil and gravel and leave with a finished bonsai.
Price: $195; $170 member
Event link: https://www.botanicgardens.org/programs/beginning-bonsai
Sat
17
October 17 @ 10:00 am – 12:00 pm
Wiggly Worms: Make & Take Worm Bin
Denver Urban Gardens | Posner Center for International Development, 1031 33rd St., Denver, CO 80205
FIND MORE EVENTS
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Bath Garden Center
2000 East Prospect, Fort Collins
​
Blair-Caldwell African American Research Library
Free Plant Propagation Library
2401 Welton Street, Denver
Visitors can drop in during regular branch hours to pick up a free plant clipping or drop off their own propagated cuttings and clean glass jars to share with the community.
​
Blue Shed Urban Gardens
1064 South High St, Denver
​​
Brigitte Mars, Boulder Herbalist
1919 19th St, Boulder
​​​​
Butterfly Pavilion
6252 West 104th Ave, Westminster
​
The Gardens on the Spring Creek (City of Fort Collins)
2145 Centre Ave, Fort Collins
​
Colorado Native Plant Society
704 East Boulder Street, Colorado Springs
​
Colorado State University Food Systems
1311 S. College Ave, Fort Collins​
​
CSU Extension Gardening Webinars
Online
​​​​
CSU Ext Jeffco Native Plant Master
Various locations in: Littleton/Golden/Evergreen/Morrison
​
Denver Botanic Gardens
Various locations:
York Street, Denver /Deer Creek Canyon Road, Littleton
​
Denver Rose Society
Meetings at: 1007 York Street, Denver
​​
Denver Urban Gardens (DUG)
1031 33rd Street, Suite 100, Denver
​​
Echters Garden Center
5150 Garrison St, Arvada​​​​​
​
​Fort Collins Nursery
2121 East Mulberry, Fort Collins​
​
Growing Gardens
1630 Hawthorn Ave, Boulder • 303.443.9952​
​
Harlequins Gardens
303-939-9403 (Retail), 4795 North 26th St, Boulder
​
High Plains Environmental Center
2698 Bluestem Willow Drive, Loveland
​
Jared's Nursery
10500 W Bowles Ave, Littleton
​
Mountain Roots Gardens
8275 CO Rd 54, Milliken
​
​Nick’s Garden Center
2001 S Chambers Rd, Aurora, CO 80014
Phelan Gardens
4955 Austin Bluffs Parkway., Colorado Springs, CO
​​​​​​​​People and Pollinators
Action Network Events (PPAN)
Online
​
Resource Central
Online and In-Person
​
Rick's Garden Center
1827 West Uintah St, Colorado Springs
​
Wildlands Restoration
Various locations:​
2100 Collyer St, Longmont/ 2926 E. Mulberry St., Unit B, Fort Collins
​
Tagawa Gardens
7711 S Parker Rd, Centennial
Build a vermicomposting bin to take home and learn how to care for red wigglers that transform food scraps into nutrient-rich compost year-round.
Price: Pay What You Can
Event link: https://dug.org/event/2026-october-wiggly-worms/
Mon
19
October 19 @ 6:00 pm – 8:00 pm
Growing Gourmet Mushrooms
Denver Urban Gardens | Posner Center for International Development, 1031 33rd St., Denver, CO 80205
Learn the growing conditions gourmet mushrooms need, cultivation techniques and troubleshooting while assembling a ready-to-fruit grow bucket to take home.
Price: Pay What You Can
Event link: https://dug.org/event/2026-growing-gourmet-mushrooms/
Sat
24
October 24 @ 9:30 am – 11:30 am
Orchids 201
Denver Botanic Gardens | York Street, 1007 York St., Denver, CO 80206
An intermediate orchid-growing class covering habitat, pollination, breeding, tissue culture, mineral nutrition, pH, water quality, flowering, propagation and more. Each participant receives an orchid species to take home.
Price: $52; $47 member
Event link: https://www.botanicgardens.org/programs/orchids-201
Sat
24
October 24 @ 10:00 am – 12:00 pm
Putting Your Rose Garden to Bed
Denver Botanic Gardens | York Street, 1007 York St., Denver, CO 80206
Prepare roses for winter, plan new rose beds and learn when and how to transplant or rearrange existing plants. The class also covers rose varieties recommended for the Front Range and high-altitude gardens.
Price: $40; $34 member
Event link: https://www.botanicgardens.org/programs/putting-your-rose-garden-bed
NOVEMBER
Tue
3
November 3 @ 9:30 am - 12:30 pm (continues Thursday, November 5)
Ecology for Gardeners
Denver Botanic Gardens| York Street, 1007 York St., Denver, CO 80206; online option also available
A two-session course on core ecology principles through the lens of Rocky Mountain gardening. Learn how plants, animals, soil and climate interact and how to apply those relationships to a more sustainable garden.
Price: $120; $102 member
Event link: https://www.botanicgardens.org/programs/ecology-gardeners
Sat
7
November 7 @ 10:00 am - 12:00 pm
Fearless Shrub Pruning
Denver Botanic Gardens| York Street, 1007 York St., Denver, CO 80206
Learn when and how to prune deciduous and evergreen shrubs for long-term plant health and appearance, with emphasis on flowering shrubs and rejuvenation pruning for overgrown plants.
Price: $36; $30 member
Event link: https://www.botanicgardens.org/programs/fearless-shrub-pruning
Wed
11
November 11 @ 12:00 pm - 1:00 pm
Scenes from a Cemetery: Plant Edition
CSU Extension Gardening Webinars| online
Larimer County Extension horticulturist Alison O’Connor explores the distinctive plant diversity found in cemeteries around the United States, including Colorado, from mature trees to grasses and long-established perennials.
Price: Free; advance registration required
Event link: https://planttalk.colostate.edu/webinars/
Thu
12
November 12 @ 6:30 pm - 8:00 pm
Getting Started / Best Plants! Webinar with Ayn Schmit
Wild Ones Front Range Chapter| online
A public Wild Ones program focused on getting started with native-plant gardening and choosing strong plant options for Front Range landscapes. Registration is required; the organization notes that additional details are forthcoming.
Price: Member $5, Non-member $25
Event link: https://frontrange.wildones.org/events/?wo_event_id=13697
Sat
14
November 14 @ 11:00 am - 12:00 pm
Pikes Peak Region 2026 Native Plant Seed Share
Wild Ones Front Range Chapter| Grace & St. Stephen’s Episcopal Church, Colorado Springs, CO
A free native-seed share with annuals, perennials, shrubs and grasses suited to the Pikes Peak region. No seeds are required to participate; attendees can take home native seed for their gardens.
Price: Free - Members Only
Event link: https://frontrange.wildones.org/events/?wo_event_id=13736
Sun
15
November 15 @ 11:00 am - 2:00 pm
Northern Colorado Native Seed Swap and Giveaway
Wild Ones Front Range Chapter / The Gardens on Spring Creek| 2145 Centre Ave., Fort Collins, CO 80526
Choose from native annual, perennial, grass, shrub and tree seed and learn how to grow native plants from seed. You do not need to bring seed to attend or take seed home.
Price: Free
Event link: https://frontrange.wildones.org/events/?wo_event_id=13151
Wed
18-21
November 18 - 21 @ various times (see website)
Holiday Porch Pot Workshops
Tagawa Gardens| 7711 S Parker Rd, Centennial, CO 80016
Sign up early to claim your spot in our signature Holiday Porch Pot workshops! Guided by our talented Design Team, you will learn how to expertly arrange a stunning winter planter with your own unique flair. With fresh evergreen boughs and seasonal embellishments, we have all you need to build an evergreen container* that will last all season long!
Register at: https://tagawagardens.com/event/holiday-porch-pot-workshops/
