Become a Master Gardener

The mission of the Denton County Master Gardener Association is to educate and engage county residents in the implementation of research-based horticultural and environmental practices that create sustainable gardens, landscapes, and communities.   If you love gardening, want to learn more and would like to share your knowledge with others, the Denton County Master Gardener Association offers the opportunity to learn and to serve the community.

Who are Master Gardeners?

Master Gardeners are from all walks of life and volunteer on behalf of their state’s land grant university, Texas A&M University. What really sets Master Gardeners apart from other home gardeners is their special training in horticulture. In exchange for their training, persons who become Texas Master Gardeners contribute time as volunteers, working through their county’s Texas A&M AgriLife Extension office to provide horticultural-related information to their communities. Texas Master Gardeners are representatives of Texas A&M AgriLife Extension, and as such, Master Gardeners follow the research-based recommendations of Texas A&M AgriLife Extension. The title “Texas Master Gardener” can be used by volunteers only when engaged in Extension-sponsored activities.

How to Become a Texas Master Gardener

Training Classes
If accepted into the Denton County Master Gardener program, you will be required to attend a minimum of 70 hours in specialized training that begins January 29, 2019, and ends April 30.  Training classes are held each Tuesday from 9:00 AM to 4:00 PM. (See the 2019 class schedule.) Schedule changes may occur due to the weather or instructor availability.  Our training program offers instruction in Earth-Kind garden management, Integrated Pest Management, soil management and water conservation, lawn care, ornamental trees and shrubs, plant nutrition, vegetable and fruit gardening, native perennial and annual flowers and much more. Classes are held at the Global Spheres Center, located at 7801 S. Stemmons Freeway (IH35E), Corinth TX 76210.


Experienced, active Master Gardener mentors are paired with trainees to help guide them through a successful classroom training and volunteer experience during their first year.

The tuition for training for the Class of 2019 is $250, which covers the manual, class t-shirt, badge, field trips, instructor fees, and graduation dinner costs. Tuition is due by January 2, 2019, but only after you receive a letter of acceptance.

Volunteer Commitment
First-year Denton County Master Gardener Interns are required to volunteer a minimum of 70 hours to projects provided and supervised by Denton County Master Gardener Association.  A wide variety of projects are available that include becoming involved with youth at area schools, assisting in gardens at senior centers, working on the Denton County Master Gardener Help Line, speaking to large and small groups interested in gaining gardening knowledge, or any one of our major community events we host each year. There are plenty of projects to choose from, and all are filled with great people invested in learning and sharing their gardening knowledge! More about our current projects can be found on the Denton County Master Gardener Projects page.

Participants become certified Texas Master Gardeners after they have completed the first year of required training and volunteer commitment. A graduation dinner and awards ceremony is hosted each January to commemorate and award each successful Master Gardener Intern. Texas Master Gardeners in Denton County maintain their certification by attending 12 hours of advanced training and providing a minimum of 12 hours of volunteer time each year after their initial training year.

How to Apply
If you have a keen interest in gaining an ongoing education in best practices of sustainable gardening and want to share that education with your community, the Denton County Master Gardener Program may be for you! We are looking for individuals who can commit to the training and Internship requirements, and more importantly, individuals who want to learn and share their education with others through volunteer service as a representative of the Texas A&M AgriLife Extension.

There are two ways to apply:  Thank you for your interest in the Denton County Master Gardener Association. We are no longer taking applications for the Class of 2019.  Please check here in the summer of 2019 for information about the class of 2020.

  • Complete the online Master Gardener Application.
  • Print and mail the completed application to the address on the form.

Applications for the Class of 2019 Master Gardener Interns will be accepted through October 19, 2018.  Sorry, with the number of applications we receive, no late applications can be accepted.  An individual interview will be scheduled as part of the application process and to offer you another opportunity to learn more about us and how your contributions of time and effort can make an important difference for our local community! Interviews will be scheduled from late October into November. Final selection of approved candidates for the 2019 training year will be notified no later than December 5, 2018.  Please note that tuition is not due until after you receive a letter of acceptance.

We invite you to complete the application and come out to our annual “Round Up” event on October 17, 2018 from 10:00 A.M. to 12:00 noon at the Denton County Extension office at the Joseph A. Carroll Building, 401 W. Hickory Street, Denton, TX, Room 115 (map).   You will have the opportunity to meet our members, learn more about the program and ask questions to learn if our program is a “best fit” for you.   Please note, attendees at Round Up will have the first pick of interview dates, so come on out to learn more about the Denton County Master Gardener Association and the Texas Master Gardener Program!

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