Colorado State University
Extension
4-H Youth Development
4-H empowers youth to reach their full potential
Colorado Master Gardeners
Learn and volunteer with us!
Become a 4-H STEM AmeriCorps Member!
Join us as an AmeriCorps member!
Horticulture
Ask questions and discover gardening!
Food & Nutrition Education
Promoting self sufficiency with the EFNEP program
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.
Learn More!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.
Learn more!Denver Master Gardener Plant Sale
Thank you for an amzing 2025 Plant Sale! Stay tuned for details of our May 2026 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
Learn more!