Become a Colorado Master Gardener

CWC Garden

Douglas County Master Gardener Enrollment

We will be accepting applications for the 2017 Master Gardener Program September 1st to October 14th. If you are interested in participating in the Master Gardener program or 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 4:30 p.m., Monday through Friday.

  • Call us at: (720) 733-6930

  • E-mail us at:

  • Come visit us at: 410 Fairgrounds Road
                                    Castle Rock, CO 80104

2017 Colorado Master Gardener Programs

We are now accepting applications for the 2017 Colorado Master Gardener Program and the 2017 Colorado Gardener Certificate Program. We will be accepting applications for Douglas County residents until October 14th and Arapahoe County residents until October 21st. You can print the information below or call our office and we can mail you the information.

2017 Cover Letter/Program Introduction
2017 Colorado Master Gardener Application
2017 Colorado Gardener Certificate Application
2017 Front Range Training Schedule

Enrollment Options and Class Information

Colorado Master Gardener Volunteer

Tuition for CMG Volunteer training in 2017 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 knowledge-based information about home gardening to Douglas County residents. To maintain your GMC 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 2017 will be $530. Individuals who were not selected as CMG volunteers may enroll as Colorado Gardener Certificate students.

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.

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, 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.