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The Plant Guide

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Rocky Mountain penstemon

Penstemon strictus 'Bandera'

PEN-steh-mon STRIK-tus Audio

Rocky Mountain penstemon is an upright perennial that forms a mat of glossy green leaves from which arise straight, 2-foot-tall stems bearing rich purple blooms. It flowers in early June and occasionally throughout the summer. Blooms contrast nicely with yellow-blooming plants.

Noteworthy CharacteristicsNative from Wyoming to Arizona.

CareGrow in full sun to partial shade and fertile, well-drained soil.

PropagationTake softwood cuttings in early summer or semi-ripe cuttings in midsummer. Divide in spring. Evergreen foliage spreads rapidly, so rooted stems can be divided from the outer edges of a clump.

ProblemsPowdery mildew, rust, leaf spots, and Southern blight. Slugs and snails may damage young plants.

  • Genus : Penstemon
  • Plant Height : 1 to 3 feet
  • Zones : 3, 4, 5, 6, 7, 8
  • Plant Width : 6 to 12 inches
  • Light : Full Sun to Partial Shade
  • Moisture : Medium Moisture
  • Plant Type : Perennials
  • Characteristics : Showy Foliage
  • Bloom Time : Summer
  • Plant Seasonal Interest : Summer Interest

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