1999 Plant Select Winner 18" tall x 15" wide (cutting propagated). This, the companion to Penstemon Red Rocks with concord grape-colored flowers, Pikes Peak Purple is long blooming and easy to grow. I like to plant it with yellow-flowered perennials like Coreopsis 'Sunray' and Sundrops. This is a vigorous grower that performs best in moderately fertile, but well-drained soils. Will flower most vigorously with regular watering.