Penstemon barrettiae

Penstemon barrettiae

Barrett’s Penstemon, Penstemon barrettiae, has woody stems and large glaucous gray leaves with showy lavender flowers in spring.  A mature plant in the wild can grow up to 40″ x 70″ but garden plants are generally smaller.  Grow in full to part sun in very well-drained, gritty soil with low summer water.  Hardy to -10 degrees.  Penstemon barrettiae is a protected plant in the state of Oregon and our plants are grown from seed collected in Klickitat County, Washington by Alan Bradshaw of Alplains. His seed lot number 10214.19.

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