Jul 14 The Secret Life of Plants – A Three-Part Series - Session 1: "A Brief History of Plants" 5 – 6:30 p.m., July 14, 2026 Pima County Join Pima County Master Gardeners online. In part 1 of 3, explore plant evolution, reproduction, and survival; tracing the journey from algae to modern ecosystems.
Jul 16 NEW! Short Take: Highlighting Native Plants: Yellow Orchid Vine, Callaeum macropterum 5 – 5:30 p.m., July 16, 2026 Pima County Join us Online. Explore Yellow Orchid Vine, a heat-loving native vine prized for its yellow flowers and distinctive winged seeds.
Jul 18 Image Ask a Master Gardener Online 10 – 11 a.m., July 18, 2026 Maricopa County 1st Fridays and 3rd Saturdays 10:00 a.m. - 11:00 a.m. Do you have a garden problem? Need help with your landscape plants? Don't know what to plant when? Want to start a vegetable garden, but don't know where to start? Join Maricopa County Master Gardeners to get answers to your home garden and landscape questions during this free twice monthly LIVE ONLINE ZOOM Q&A session. Free Online Registration closes one day prior to the event date.
Jul 22 Diagnosing Leaf Problems: Yellow Leaves 3 – 4:30 p.m., July 22, 2026 Pima County Join us Online. Not all yellow leaves mean the same thing. Learn to diagnose the cause and choose the right remedy for your plants.
Jul 29 Diagnosing Leaf Problems: Damaged Leaves 3 – 4:30 p.m., July 29, 2026 Pima County Join us Online. Not all leaf damage is caused by insects. Learn to recognize the signs of pests, animals, weather, and other causes of damaged leaves.
Jul 31 Qué hacer en el jardín este mes 5:30 – 6 p.m., July 31, 2026 Pima County Únete a nosotros en línea. Guía mensual con tareas clave para el jardín en el Desierto de Sonora, ayudando a decidir qué hacer y cuándo.
Aug 07 Image Ask a Master Gardener Online 10 – 11 a.m., Aug. 7, 2026 Maricopa County 1st Fridays and 3rd Saturdays 10:00 a.m. - 11:00 a.m. Do you have a garden problem? Need help with your landscape plants? Don't know what to plant when? Want to start a vegetable garden, but don't know where to start? Join Maricopa County Master Gardeners to get answers to your home garden and landscape questions during this free twice monthly LIVE ONLINE ZOOM Q&A session. Free Online Registration closes one day prior to the event date.
Aug 15 Image Ask a Master Gardener Online 10 – 11 a.m., Aug. 15, 2026 Maricopa County 1st Fridays and 3rd Saturdays 10:00 a.m. - 11:00 a.m. Do you have a garden problem? Need help with your landscape plants? Don't know what to plant when? Want to start a vegetable garden, but don't know where to start? Join Maricopa County Master Gardeners to get answers to your home garden and landscape questions during this free twice monthly LIVE ONLINE ZOOM Q&A session. Free Online Registration closes one day prior to the event date.
Aug 23 Image Adobe Stock and MG Program DIG IN PERSON- Made in the Shade: Expanding Urban Forests 2 – 4 p.m., Aug. 23, 2026 Maricopa County DIG IN PERSON Made in the Shade: Expanding Urban Forests Sunday, Aug. 23, 2026 2:00 PM - 4:00 PM Registration: $20 This class will be in-person at the University of Arizona Maricopa County Cooperative Extension, 4341 E Broadway Rd, Phoenix, AZ 85040 Speaker: Julie Knapp How much do you value shade? Strategically planted trees can reduce heating and cooling costs by an average of 25 percent annually. Learn how to increase the shade canopy in your landscape with trees. More than 30 different trees will be covered. We’ll also discuss planting, watering, pruning, tree failure, as well as pests and diseases.
Aug 27 Image Adobe Stock and MG Program DIG ONLINE- Mastering Irrigation in the Desert 6:15 – 8:15 p.m., Aug. 27, 2026 Maricopa County DIG ONLINE Mastering Irrigation in the Desert Thursday, Aug. 27, 2026 6:15 PM - 8:15 PM Speaker: Donna DiFrancesco Registration: $20 Non-Refundable Registration closes Wednesday, Aug. 26 at Noon This class will be Online. A class link and handouts will be sent to you the day before class. If you’ve ever heard, “I water every day for 30 minutes because that’s what the controller is set on,” this session is for you. Desert irrigation doesn’t have to be guesswork – and it certainly doesn’t have to waste water. Join Donna DiFrancesco, horticulturist and Conservation Coordinator for the City of Mesa, as she introduces the newly updated Landscape Watering by the Numbers guide and breaks down the art and science behind efficient watering in Arizona’s desert climate.
