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Welcome to the CSU Extension Office in Douglas County. Our goal is to assist you with any questions you may have whether it is about gardening, wildlife, 4-H or any other needs.

Educational Demonstration Gardens   arrow

We support and utilize five educational gardens across our county to demonstrate how, what and where to garden in your home landscape or neighborhood. Consider reaching out to these gardens for a tour or more information. Some accessible to stop by, while others require advanced notice. Click for more information about each garden:

CSU Extension in Douglas County Gardens

Location: 410 Fairgrounds Road, Castle Rock, CO 80104
What you’ll find: A variety of unique garden spaces including: xeric, dry shade, perennials, rock garden, roses and turf grass.

Douglas County Public Gardens

Location: 620 Wilcox St, Castle Rock, CO 80104
What you’ll find: In the heart of historic downtown Castle Rock, this garden is converting traditional building landscaped areas to more xeric, native and Colorado-hardy plants in both shaded and sunny areas surrounded by sidewalks and turf grass.

Hidden Mesa Research Orchard & Demonstration Garden

Location: 3217 CO-83, Franktown, CO 80116
What you’ll find: 2 acre research orchard with fruit and nut trees, 4 high tunnels growing fruits and propagating new plants, 22 raised bed vegetable gardens, 30+ chickens used for insect management, small composting operation and various trial gardening techniques for the harsh Colorado climate.

Sedalia Plant Select Garden

Location: 4037-A North, Platte Ave, Sedalia, CO 80135
What you’ll find: Plant Select garden focused on low-water (xeric), tough, hardy plants for our Colorado climate.