Become a Master Gardener
Learn, grow, and give back
Do you love gardening, learning, and helping others? The OSU Extension Master Gardener™ volunteer program is a community of gardeners who teach, learn, and grow together.
Volunteers receive in-depth training from Oregon State University, then share that knowledge to help others garden successfully in their own communities.
"Master Gardeners grow more than plants - they grow community."
What it means to be a Master Gardener volunteer
Being a Master Gardener volunteer is about curiosity, community, and service.
As a volunteer, you’ll:
- Learn about plants, soil, pollinators, pests, and sustainable gardening practices
- Help answer questions from local gardeners through plant clinics and events
- Support school and community gardens
- Make connections with people who love gardening as much as you do
Training and Certification
Each year, OSU Extension offers Master Gardener training for new volunteers. This is a dynamic program that will increase your gardening knowledge, encourage you to help others by volunteering in the community, and build new friendships.
Here’s an overview of the program requirements:
- In-person classes. These required in-person classes will encourage you to dive deeper and start getting connected with other program participants.
- Online learning modules are taught by OSU experts and provide fundamental horticulture knowledge. The modules include videos, readings, and quizzes on all aspects of sustainable gardening. There are 1-2 modules per week done at your own pace.
- Volunteer hours are the third key learning experience to become an OSU Master Gardener volunteer. We require 40 hours of volunteer service in your initial program year. All volunteer experiences are carefully selected to help you learn and connect with the community. The Polk County Master Gardener Association (PCMGA) is OSU’s partner in offering volunteer experiences in support of the Master Gardener Program.
Once you graduate from the training program, keep your certification active with 10 hours of continuing education and 20 volunteer hours each year.
Applications open each fall, and classes begin in February. The course fee is $150 (partial scholarships are available).
Ready to grow with us?
The 2026 class is full. Please add your name to the interest list and we'll send you an email when applications for the 2027 class open.