Alphabetical Plant Listing

Penstemon cobaea (Prairie Beardtongue)

Prairie Penstemon, Prairie Beardtongue, Foxglove Penstemon, Foxglove Beardtongue, False Foxglove, Large-flowered Penstemon, Large-flowered Beardtongue, Cobaea Penstemon, Cobaea Beardtongue, Wild Foxglove


A real standout in the landscape, Penstemon cobaea (Prairie Beardtongue) is a clump-forming perennial boasting loose panicles of large, white to violet to deep purple flowers in mid to late spring. The tubular flowers, 2 in. long (5 cm), are larger than most penstemons and they cover at least half the stems. They attract scores of hummingbirds, butterflies, moths and other beneficial pollinators. The blossoms are borne on stout stems bearing downy, lance-shaped, paired leaves. Easy to grow, fuss-free, water-wise, it is perfect for the sunny rock garden.

  • Grows up to 12-24 in. tall (30-60 cm) and 12-18 in. wide (30-45 cm).
  • Performs best in full sun in average, dry to medium, well-drained soils. Drought tolerant once established.
  • Provides a charming impact in beds and borders, cottage gardens, rock gardens. Plant in bold groupings.
  • No serious pest or disease issues. Susceptible to root rot in wet, poorly-drained soils.
  • Cut back the stems after flowering, or wait for the seeds to ripen.
  • Propagation by seed. Easily raised from seed (blooms second year). Germination is best with cold-moist stratification.
  • Native from Nebraska through the southern Great Plains to Texas.

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Requirements

Hardiness 5 – 8
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Penstemon - Beardtongues
Exposure Full Sun
Season of Interest Spring (Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 24" (45cm – 60cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Iowa, Kansas, Missouri, Nebraska, Ohio, Rocky Mountains, Colorado, Southeast, Arkansas, Southwest, Arizona, New Mexico, Oklahoma, Texas
Tolerance Deer, Drought, Dry Soil, Rocky Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

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Great Plant Combination Ideas with Penstemon - Beardtongues


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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 8
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Penstemon - Beardtongues
Exposure Full Sun
Season of Interest Spring (Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 24" (45cm – 60cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Iowa, Kansas, Missouri, Nebraska, Ohio, Rocky Mountains, Colorado, Southeast, Arkansas, Southwest, Arizona, New Mexico, Oklahoma, Texas
Tolerance Deer, Drought, Dry Soil, Rocky Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Penstemon - Beardtongues

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