Join the University of Idaho Ada County Master Gardeners at Edwards Greenhouse for our 2026 Spring Garden School! There are multiple classes to choose from. Enjoy some short and sweet classes, or take a deeper dive with some of the longer sessions available. Registration is limited, so sign up today!

Please Note: Parking at Edwards Greenhouse is very limited, and carpooling is encouraged. The greenhouse can be chilly in the morning, so bring layers. Coffee and tea provided. All proceeds to support the UI Extension Master Gardener Program and Free Community Plant Clinic. Register soon! SNAP and WIC card holders please contact UI Extension for free registration, limited spots available.

Class Offerings: Registration covers both sessions below and you may choose which classes to attend the day-of.

Fast Track Sessions
9 AM - 9:30 AM | Designing Your Perennial Flower Garden, Advanced Master Gardeners Nancy Hilbrands & Judene Presley
9:30 AM - 10 AM | Wire Bin Composting, Advanced Master Gardener Hatasu Tankersley
10 AM - 10:15 AM | Break
10:15 AM - 10:45 AM | All About Penstemons, Advanced Master Gardener Ellen Berggren
10:45 AM - 11:15 AM | Converting Overhead Irrigation to Drip, UI Horticulture Intern Laura Rogers
11:15 AM- 11:30 AM | Break
11:30 AM - 12 PM | Common Problems in Fruit Trees, Advanced Master Gardener Richard Uhlmann
12 PM - 12:30 PM | Pruning Roses and other Flowering Shrubs, Advanced Master Gardeners Bob Kempton & Maarten de Witte

Deep Dive Sessions
9 AM - 10 AM | Gardening in the Treasure Valley, University of Idaho Extension Horticulture Educator Sierra Laverty
10 AM - 10:15 AM | Break
10:15 - 11:15 AM | Firewise Landscaping 101, Advanced Master Gardener Kristin Ryan & Jane Kuechle
11:15 AM - 11:30 AM | Break
11:30 AM - 12:30 PM | Vegetable Gardening in Raised Beds & Containers, University of Idaho Extension Program Coordinator & Advanced Master Gardener Ann Feuz