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Penstemon calycosus

Native Plants

Long-Sepal Beardtongue

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Long-sepal beardtongue (Penstemon calycosus) is a herbaceous perennial deserving of greater use in the garden because of its cultural adaptability. Long-sepal beardtongue tolerates a variety of conditions from filtered shade to full sun and well-drained, moist to dry soils. Flowers are produced in terminal panicles and each individual flower is 1” long, snapdragon-like, and ranges in color from light violet to purple. Plants can grow 1-3’ tall and roughly 2’ wide. The foliage is lance shaped, semiglossy, medium green, and has finely saw-toothed edges. Use with Indian pink (Spigelia marilandica) to extend the season of bloom or use with Dale’s Strain American alumroot (Heuchera americana ‘Dale’s Strain’) and fringed bluestar(Amsonia ciliata) for a pleasing foliar combination. Zones 5-8. 

More Details

  • Plant Type
  • Sun/Shade Conditions
    filtered-shade, full-sun 
  • Foliage Character
  • Soil Moisture
  • Flowering Period
  • Soil PH
  • Flower Color
  • Summer Foliage Color
  • Fall Foliage Color
    green, purple 
  • Fruit/Seed Color