Trees & Shrubs

Our plant experts can help you

Whether you're planting, potting or pruning, our plant scientists and other experts can guide you to better trees and shrubs.

Resources

Campus Arboretum Educational Resources

Species lists and databases of tree characteristics help you find the tree that is just right for you.

Explore resources

Shade Trees

One of our experts explains the ins and outs of shade tree trimming.

Our shade tree pruning video

Common Problems

How to recognize common tree problems.

Educational Materials

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Guide

Arizona Homeowner Guide to Citrus Greening Disease

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Guide

Planting Guidelines for Container Trees and Shrubs

Guide

February Monthly Garden Reminders

Guide

January Monthly Gardening Reminders

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Árboles de Mezquite y Palo Verde para el Paisaje Urbano

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Guide

Riego de Árboles y Arbustos: Técnicas Sencillas para un Riego Eficiente del Paisaje

Events

Short Take: What to Do in the Garden This Month

5 – 5:30 p.m., Sept. 1, 2025

Join us online. Learn what to do in the garden in September in the Sonoran Desert: what to plant, prune & prep after a scorching summer!

Environmental & Natural Resources Building 2 Tour

8 – 9:30 a.m., Sept. 27, 2025

Join us for a tour of an urban oasis and learn how to create one at home

Short Take: What to Do in the Garden in October

5 – 5:30 p.m., Sept. 29, 2025

Join us online. October is the beginning of prime time in the Sonoran Desert garden! Find out what to plant, prune, and prep in this month's Short Take.

News

Photo of dying trees near Prescott

Extended drought killing and damaging trees from northern to southern Arizona

After questions from the public, University of Arizona Cooperative Extension experts examined trees and tested for diseases. The verdict? It's from a lack of water.

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Local Information & Resources

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Specialized Knowledge

Educational Materials