Perennial Paradise Awaits! Join Us for Insights on Selection, Colors & Care with UC Master Gardeners. Submitted by Anonymous (not verified) on April 5th, 2024 UC Master Gardener Program Encore! Encore! Encore! That's what perennials are all about, and UC Master Gardeners of Orange County can tell you all about perennial flowers, trees, shrubs and edibles. Click the image to learn more and visit our Classes and Events Calendar page.