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Science-based gardening information for Colorado communities from CSU Extension, Denver Botanic Gardens, and Green Industries of Colorado.

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CSU Extension Gardening Webinars

Below are free online classes available from CSU Extension. Advanced registration is required.

Extension Programs are available to all without discrimination. If you have a need for which you seek an accommodation, please notify the listed presenter and allow at least 14 days to provide the accommodations.

pink coneflowers

2025 WEBINARS

JANUARY

CSU Best Of Annuals and Perennials from 2024

Wednesday, January 8, 2025, 12:00pm MT

Registration required

Join Dr. Chad Miller, from the CSU Department of Horticulture and Landscape Architecture, for an update on the best performing annuals and perennials from the 2024 Colorado State University flower trials.


2024 WEBINARS

JANUARY

Best of CSU Annuals and Perennials

Instructor: Dr. Chad Miller, CSU Department of Horticulture and Landscape Architecture

Recording

Please take our survey and provide us with your valuable input!


FEBRUARY

Our Favorite Perennials

Instructors: Cassey Anderson and Alison O’Connor, CSU Extension

Recording


MARCH

Waterwise Updates for Lawns and Landscapes

Instructor: Deryn Davidson, CSU Extension Sustainable Landscapes Specialist

Recording


APRIL

Clover Lawns and Organic Lawn Care

Instructor: Dr. Tony Koski, CSU Department of Horticulture and Landscape Architecture

Recording

Seed Starting

Instructor: Cassey Anderson, CSU Extension in Adams County

Recording

Gardening is Good!

Instructor: Alison O’Connor, CSU Extension in Larimer County

Recording


MAY

Terrific Trees for the Front Range

Instructor: Eric Hammond, CSU Extension in Adams County

Recording

Superior Shrubs for the Colorado Landscape

Instructor: Dr. Jim Klett, Professor Emeritus, CSU Department of Horticulture and Landscape Architecture

Recording

How to Buy a Plant

Instructor: John Murgel, CSU Extension in Douglas County

Recording

The Insect Eras Tour

Instructor: Lisa Mason, CSU Extension in Arapahoe County

Recording

Unique Annuals for Pots!

Instructor: Rachel Durkan, CSU Extension in Jefferson County

Recording


JUNE

Waterwise Turf Species: Pros and Cons

Instructor: Dr. Tony Koski, CSU Department of Horticulture and Landscape Architecture

Recording


JULY

Urban Arthropod Pests

Instructor: Karim Gharbi, Horticulture Specialist, Denver County Extension

Recording


AUGUST

Fire-Resilient Landscapes

Instructor: Micaela Truslove, Commercial Horticulture Specialist, Boulder County Extension

Recording


SEPTEMBER

Extending Your Garden Season

Instructor: Eric Hammond, County Director and Hort Specialist, Adams County Extension

Recording


OCTOBER

Plant Happiness: Seven Things Everyone Needs to Know

Instructor: John Murgel, Horticulture Specialist, Douglas County Extension

Recording


NOVEMBER

Starting Native Plants from Seed

Instructor: Allisa Zurbuchen, Horticulture Specialist, El Paso County Extension

Recording


DECEMBER

New! Fresh Gardening Myths

Wednesday, December 11, 12pm-1pm MT

Instructor: Alison O’Connor, Horticulture Specialist, Larimer County Extension

Registration required


Past Webinars

Links coming soon