Maricopa County Master Gardener

The Master Gardener Volunteer Training Course is offered twice a year, the Spring session starts in January and a Fall session starts in July, yearly.

Thank you for your interest in the Master Gardener Volunteer training program. The application period for the training program has closed, would you like us to send a reminder email to you when the next application period opens?

Please CLICK HERE to enter your name and email address and we will notify you via email when the application period is opened

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The University of Arizona Cooperative Extension in Maricopa County trains gardening enthusiasts as Master Gardener Volunteers. Master Gardeners are active volunteers providing education on the best practices in home landscape and gardening to their communities.

Using research and science-based information from the University of Arizona, Master Gardeners help create more sustainable gardens and more livable cities better prepared to meet the challenges of the future.

Master Gardener Volunteers provide:

• Answers to landscape and gardening questions
• Outreach and education in the community
• Mentorship for Master Gardeners in training
• Maintenance of the Demo Garden and landscape at the Cooperative Extension Office
• Event planning and other program support

Master Gardeners become certified after completing a 17-week training course and logging 50 volunteer hours towards approved volunteering activities.  Ongoing volunteering is required for annual re-certification.

• Tuition: $375.00
• Location: Course location is online anywhere with an internet connection, usually in the convenience of the home.
• A computer or tablet connected to the internet, and use of the Zoom platform are required for this online course.

Acceptance into the Course

There are routinely more qualified applicants for the program than available openings. Many successful applicants have applied more than once.

• Selection is not first-come first-served, but on a demonstrated willingness to volunteer in the community.
• Agreement to uphold the program mission, its policies, and participation in the University of Arizona's Designated Campus Colleague (DCC) system are all required for acceptance into the program.

Important Skills for Master Gardeners

• Public speaking and education delivery
• Customer service
• Curiosity and a desire to learn
• Organization and attention to detail
• Experience or strong interest in plants, gardens and landscapes

Asynchronous Course Format:

Using University of Arizona’s education resources, the Master Gardener Training Course is delivered through Desire 2 Learn (D2L), an online classroom.

• Students engage in the online training portion from their home at a time that is convenient for them during the week.
• A weekly live Zoom meeting will provide an opportunity for questions and personal interaction. Trainees will be organized into small groups of 6-9 people to create meaningful online interaction preparing them for volunteering in their community.
• The University of Arizona’s research-based training material will give students rich educational experience in home gardening and landscaping.

Course and Weekly Time Requirements:

• 5-6 hours of weekly study time, reading and videos, at the convenience of your schedule.
• 1 hour weekly live Zoom meetings with your assigned small group and Master Gardener Mentor.
• 20 hours of approved volunteer hours during the course, with 50 volunteer hours required for certification as a Master Gardener.

                                                                                           FAQs for Master Gardener Volunteer Course

Course Outline:

Week 1: Orientation, Practice Week
Week 2: Botany – Part 1
Week 3: Botany – Part 2
Week 4: Soil, Water & Plant Relationships
Week 5: Soil, Fertilizer & Composting
Week 6: Vegetable Gardening
Week 7: Irrigation
Week 8: Entomology
Week 9: Integrated Pest Management (IPM)
Week 10: Plant Problem Diagnosis
Week 11: Plant Selection, Planting and Care
Week 12: Landscape Design
Week 13: Turf and Weed Management
Week 14: Pruning Tree and Shrubs
Week 15: Citrus
Week 16: Cacti & Succulents
Week 17: Wrap up, Final

We look forward to seeing you!

Rebecca Senior
Assistant in Extension for Ornamental Horticulture
Master Gardener Course Coordinator

Persons with a disability may request a reasonable accommodation, such as sign language interpreter, by contacting the Master Gardener Program Coordinator, 602-827-8276. Requests should be made as early as possible to allow time to arrange the accommodation.