Aug 25 Science Short: Breaking Up Isn't Hard to Do: Why Your Tucson Soil Doesn't Need Gypsum 5 – 5:30 p.m., Aug. 25, 2025 Join Pima County Master Gardeners online. Why gypsum doesn’t work in Tucson soils—learn the soil science, common myths, and better options for desert soil health.
Sep 01 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!
Sep 05 Tucson - Meet Your Mountain Wildflowers 5:30 – 7 p.m., Sept. 5, 2025 Join us online. Escape the heat! Discover the Sky Islands’ stunning wildflowers, how to ID them, and bring some beauty to your Tucson garden.
Sep 08 Common Garden Myths - Part 1 5:30 – 6:30 p.m., Sept. 8, 2025 Join us online. Let's separate fact from fiction in the garden. Learn science-based practices in this 2-part series—come to one or both!
Sep 10 Common Garden Myths - Part 2 5:30 – 6:30 p.m., Sept. 10, 2025 Join us online. Let's separate fact from fiction in the garden. Learn science-based practices in this 2-part series—come to one or both!
Sep 15 NEW SERIES! The Secret Life of Plants – A Three-Part Series - Session 3: "Plant Lifecycles and Living Partnerships” 5 – 5:30 p.m., Sept. 15, 2025 Join us online in the 3rd of a 3-part series. Discover how plants evolved, reproduce, and sustain life as we explore life cycles and key partnerships that help plants thrive.
Sep 17 Battling Buffelgrass: Understanding and Managing an Invasive Threat 5 – 5:30 p.m., Sept. 17, 2025 Join us online. Learn how to fight Buffelgrass with expert Ben Tully—fire risk, spread, and control strategies for desert ecosystems.
Sep 22 Science Short: Propagating Cactus 5 – 5:30 p.m., Sept. 22, 2025 Join us online. Learn to grow cactus from cuttings & pups! Join a Master Gardener for simple, practical tips for adding to your desert garden.
Sep 27 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
Sep 29 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.
