Annual Penstemon Festival & Summer Plant Sale

Join us at our 32nd annual Plant Sale and Penstemon Festival!

The Arboretum at Flagstaff’s Summer Plant Sale and Penstemon Festival is scheduled in July to take advantage of the monsoon rains. Horticulturists at The Arboretum at Flagstaff, Flagstaff Native Plant and Seed and Warner's Nursery are propagating herbaceous perennials, vines, shrubs, and trees that are acclimated to our area and are sure to do well in your garden.

The 2015 Plant Sale will feature live local musical performers, food vendors and a beer garden. The event will showcase presentations and information booths with regional specialists.  

In addition to the plant sale, enjoy our selection of Arboretum-themed merchandise and gardening books, special presentations and walks, as well as children's crafts for shopping parents.

Admission: FREE


Friday, July 10 — Members Only

  • 2 - 6 PM: A members only preview of Arboretum, Native Plant and Seed, and Warner's selections.


Saturday, July 11— Public

  • 9AM - 3PM: Public sale of Arboretum, Native Plant and Seed, and Warner's plant selections. Come find the perfect plant for your garden!


Event Schedule