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Colorado State University Extension offices like the one in Denver County bring the research and resources of the university within easy reach, and our staff are here to help.

Denver County Extension - We are urban, inclusive, and engaged.

CSU Denver Extension Demonstration Gardens

Denver Master Gardeners maintain three demonstration gardens in Harvard Gulch Park. These gardens serve as a means of education and outreach for the local community, while also functioning as a testing ground to see how plants perform in our urban Denver setting.

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Soil, Water and Plant Testing is Available from the CSU Soil and Plant Testing Lab & Other Labs

The CSU Soil-Water-Plant Laboratory located at the CSU Spur campus in Denver analyzes soil, water and plants. They also provide fertilizer suggestions for improving crop growth. The lab does not test herbicides or pesticides.

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Denver Master Gardener Plant Sale May 17-18, 2025

SAVE THE DATES FOR OUR 2025 PLANT SALE! This popular fundraiser features heirloom and modern tomatoes, productive New Mexico chiles, annuals and perennials. Sale held at CSU Denver Extension office in Harvard Gulch Park, 888 E. Iliff Ave., Denver

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COVID-19

COVID-19 Support Services offered by the City and County of Denver.