The University of Arizona

College of Agriculture and Life Sciences

Improving Lives, Communities and the Economy

Maricopa County Master Gardener

  • master gardener website

    Visit for landscape and garden information in Maricopa County

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  • Citrus Science & Support

    Citrus is one of the original ‘5 Cs’ of Arizona.

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  • Master Gardener Plant & Landscape Help Desk

    Master Gardener Plant & Landscape Help Desk

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  • Ten Steps to a Successful Vegetable Garden video series

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  • Thriving in the Arizona Desert

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Maricopa County has a vibrant and active Master Gardener program. Master Gardeners are volunteers trained to assist you with your landscape and garden questions.

Do you have a garden or landscape question? [ info ]

Would you like to become a Master Gardener? [ info ]

Check out our resources and events on the tabs below.

What's Happening

compost class

This introductory class will cover everything you need to get started recycling your organic waste into an incredibly valuable garden resource, COM

Sorry, there are no news or announcements for Maricopa County Master Gardener.

E-Update May 27, 2016

State-wide Asian Citrus Psyllid Quarantine Declared

ADA Director Mark Killian signed an Administrative Order, yesterday, recognizing Arizona as generally infested with the Asian Citrus Psyllid (ACP), and establishing a state-wide quarantine for the pest. A Federal quarantine will be imposed sometime in the future. This action allows for the movement of citrus fruits and plants within the State of Arizona without restriction. Interstate regulations on the movement of citrus fruit and nursery stock, where applicable, are still in effect.

The explosion of ACP populations in 2016 is not unique to Arizona, but rather well documented across the citrus producing states. To date, Arizona is free from citrus greening disease (Huanglongbing - HLB). The continued, cooperative effort between Federal, State, Industry ad University partners, as well as the public and various municipalities, has gone a long way in delaying the implementation of this quarantine since the introduction of ACP in Arizona in late 2009.

In other news, HLB has just recently been discovered in Ensenada, MX some 80 miles south of the California border. HLB detection is now the primary focus in AZ with the statewide ACP quarantine.

Please contact Brian McGrew, ADA Plant Services Division, Quarantine Program Coordinator at 602.542.0955 or John Caravetta, Associate Director of Plant Services at 602-542-0996 with questions.

Maricopa County Master Gardeners | A new link has been shared | 3 weeks 3 days ago