Photographed 5/10/2012, The Desert Northwest, Sequim, Washington, copyright © 2012, Ian Barclay.

Family: Scrophulariaceae Native to: Pacific Northwest east to northern Rockies, often at higher altitudes Dimensions: typically to about 8 - 12" tall, 3 - 5' wide Cold resistance: hardy to at least -30°F, perhaps lower Drought resistance: good, but not for low desert Key Features: drought-tolerant native evergreen perennial, showy purple flowers, easy to grow Uses: dry garden, alpine garden, hellstrips, tolerant of urban conditons, best in sun. Description: This low-growing, slowly spreading perennial has rather rounded leaves and clear, mid-purple flowers. It makes a perfect small scale groundcover or rockery plant. It is not especially fussy and will grow on well-drained to average soil as long as summer watering is not excessive. Penstemon fruticosus var. scouleri has smaller leaves, and is found along the Cascade Crest in cooler and wetter habitat.

Photographed 10/8/2011, Skamania County, Washington, copyright © 2011, Ian Barclay.

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