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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.
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Douglas County Master Gardeners provide useful information to help your gardening efforts all year long. Through the Douglas County Extension Office, trained volunteers are available to answer horticulture questions about vegetable gardening, flowers, trees, shrubs, lawns, pruning, watering, plant disease and diagnosis, insect problems, composting, and environmental concerns.

Volunteers are available from April through mid-October, 9:00 a.m. to 12:00 p.m. and 1:30 p.m. to 4:30 p.m., Monday through Friday. You can stop by the office, call 720-733-6935, or email at

Volunteers are no longer staffing the office for the season. Please call the main number, 720-733-6930, if you need help.

Contact a Master Gardener  

Become a Master Gardener

Douglas County Master Gardener Enrollment

We are now accepting applications for the 2018 Colorado Gardener Certificate Program. Applications are due to Andie Wommack, the Horticulture and Small Acreage Agent NO LATER than December 15. If you are interested in participating in the Colorado Gardener Certificate program please contact us. Our office hours are 8:30 a.m. to 12:30 p.m. and 1:30 p.m. to 5:00 p.m., Monday through Friday.

Enrollment Options and Class Information

Colorado Master Gardener Volunteer

Tuition for CMG Volunteer training in 2018 will be $170 plus a commitment to complete at least 50 hours of volunteer work the first year. As a volunteer, you’ll assist Douglas County Extension staff in delivering research-based information about home gardening to Douglas County residents. To maintain your CMG status on a yearly basis, you’ll be required to pay nominal yearly dues and complete additional volunteer hours.

Colorado Gardener Certificate Student

Individuals interested in completing Master Gardener training without a volunteer commitment may enroll for the coursework under the Colorado Gardener Certificate, CGC, enrollment option. Tuition without a volunteer commitment in 2018 will be $530. Individuals who were not selected as CMG volunteers may enroll as Colorado Gardener Certificate students. Space is limited on a first come (and paid) basis. Applications and payment are due no later than December 15.

2018 Certificate Application

CMG/CGC Certification

Students who are accepted into the Colorado Master Gardener program and complete the required volunteer commitment, become Colorado Master Gardeners. The title Colorado Master Gardener is a registered service mark of Colorado State University Extension. It is used to identify volunteers serving in official CSU Extension activities. It may not be used to infer credentials, imply endorsement of a private business, or used on marketing materials of a business. Students who choose the Colorado Gardener Certificate option will not become Colorado Master Gardeners upon completion of the training.

Colorado Master Gardener Volunteers and Colorado Gardener Certificate students both receive the Colorado Gardener Certificate, which may be displayed in a place of business and used in business marketing.

CMG/CGC Classes

As an accepted CMG/CGC student, you’ll complete a curriculum that includes ten weeks (60 hours) of classroom instruction. Classes are held January through April, one day per week on Tuesday, 9 a.m. to 4 p.m. with an hour for lunch. Some variations may occur in the basic schedule to accommodate local needs. Contact the Douglas County Extension office for specific details.

View Training Schedule

Master Gardener Resources