Inland Empire's Green Gurus: Unearthing the UC Master Gardener Program
- Josh Mason
- Jul 24
- 3 min read

What Exactly Do They Do?
Hello, fellow green thumbs and gardening enthusiasts! Have you ever wondered who's behind those fantastic, research-backed gardening tips you hear in the Inland Empire? It's the incredible volunteers of the UC Master Gardener Program!
This isn't just your average gardening club; it's a hub of horticultural expertise, community outreach, and passionate individuals making a real difference in our community. So, what is the UC Master Gardener Program in the Inland Empire?
At its core, it's a volunteer-driven educational program from the University of California Cooperative Extension (UCCE). Their mission? To provide research-based information on home horticulture, pest management, and sustainable landscaping practices to California residents. Think of them as your local, friendly, university-trained gardening experts, ready to share the secrets to a thriving garden, no matter your skill level.
These dedicated individuals do everything from answering your urgent plant questions via phone and email helplines to hosting hands-on workshops and maintaining demonstration gardens. They're present at farmers' markets, community events, and work with school and community gardens, teaching everything from composting like a pro to identifying tricky plant diseases. Their work is truly empowering, helping residents grow food, save resources, and develop beautiful, healthy landscapes. Their impact is not only visible but also inspiring, motivating others to join their cause.

Funding Their Green Efforts
Now, you might be wondering, "How do they sustain this incredible work?" That's a great question! The UC Master Gardener Program, like all UCCE programs, is funded through various sources. While the University of California provides core support and research, much of its local efforts are financed through grants, community fundraisers such as plant sales and garden tours, as well as partnerships with local businesses. It's truly a community effort, with people recognizing the tremendous value these volunteers bring. Your support—whether by attending events or spreading the word—is a crucial part of this community initiative.

Where to Find Their Expertise
Geographically, the UC Master Gardener Program in the Inland Empire covers a large area, mainly serving Riverside and San Bernardino counties. This sizable region encompasses both busy urban centers and rural farms, and the volunteers tailor their expertise to meet the diverse needs of these communities.
If you're looking to connect directly with the Riverside County program, their West County Office is located at the Riverside County Cooperative Extension Building, 2980 Washington Street, Riverside, CA. They also have an East County Office in Palm Desert for those in the more remote desert areas. In San Bernardino County, the program is active throughout the county, often participating in community events and farmers' markets.

The Rigorous Road to Becoming a Master Gardener
The training these volunteers undergo is truly comprehensive. To become a certified UC Master Gardener, aspiring volunteers must complete over 50 hours of intensive classroom instruction! This is not just a quick overview; it involves an in-depth study of topics such as water management, soils and composting, plant propagation, integrated pest management (covering insects, diseases, and weeds), ornamental trees and pruning, plant biology, lawns, vegetables, citrus, and diagnosing plant problems.
It also includes local interest topics, such as roses and subtropical fruit trees, which are especially relevant to our unique climate. This rigorous training ensures that these volunteers are equipped with the most current and accurate information, thereby giving the community confidence.
After completing this extensive training, new Master Gardeners are required to volunteer a minimum of 50 hours in their first year and 25 hours each subsequent year, in addition to 12 hours of continuing education. It's a commitment, but it guarantees these volunteers stay informed and up-to-date.

Meet the Organizers and How to Join
While UC Agriculture and Natural Resources supports the program, each county has dedicated coordinators. For Riverside County, you can contact Rosa Olaiz, the Volunteer Services Coordinator. In San Bernardino County, Margaret J. O'Neill serves as the Program Coordinator. These individuals, along with many other committed staff and volunteer leaders, keep the program running smoothly and effectively.
Do you feel motivated to join this fantastic group? It's simpler than you might think! The first step is typically to attend an information session, where you'll learn about the program requirements and the application process. After that, you'll need to submit a written application and take part in an interview. They seek individuals who have a passion for gardening, an eagerness to learn, and, most importantly, a strong desire to share that knowledge with their community. Keep an eye on the UC Master Gardener Program for more information on upcoming sessions.
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