CSU Offices are closed from November 23-December 1st for Thanksgiving BreakCSU Offices are closed from November 23-December 1st for Thanksgiving Break
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Colorado gardening and landscaping takes grit and knowledge of our unique soils, climates, and plants. CSU Extension has been helping people grow in our great state for 150 years. Join us to learn the basics from our Colorado horticulture experts through our flexible, online ‘Green School’ program.
This flexible program includes both self-paced, online courses and live, facilitated online instruction.
Sign up to receive email reminders when registration opens.
What you get in the full program:
*Once enrolled, you will have access to the full course until March 2026. Refunds not available.
**To obtain your certification, you must complete 8 online courses and pass the comprehensive final exam (open-book, research encouraged) with a 70% or better.
The full Green School Program includes a mix of online learning (up to date course content includes readings, videos, activities, and quizzes) and live review sessions where you have access to CSU subject matter experts who provide instruction and answer your gardening questions.
Science-based course material is specific to Colorado’s unique (and challenging) climate, soil, environment, insects, wildlife, and plants.