Penstemon cardwellii


Common name(s): beardtongue, Cardwell's penstemon


Description: evergreen groundcover; a species named for Dr. James R. Cardwell, a horticulturalist and the first ever dentist to practice in Portland, OR. Found in the Oregon Cascades and Coast Range and the southernmost Washington Cascades at moderate elevations. Mat-forming with dense shrubby growth and attractive foliage year round. Blue-violet flowers from late spring into summer.


Height: to 1 ft. Spread: to 4 ft.


Position: full sun and well-draining soil


Uses: ornamental, to attract pollinators


Winter Hardiness: to 0 F and below


Distribution: Cascade and Coastal Mountain Ranges of Oregon and Washington

Care: no special care needed, spent flowers can be removed to redirect energy into growth.