Penstemon Onyx And Pearls


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Plant Code: PEOP

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Onyx refers to the chic dark foliage and pearls to its soft lavender-pink blushed flowers that look white from a distance. This handsome stalwart can take heat and humidity but is also very cold hardy. Provides height and drama for the back of a sunny border.

Penstemon Onyx and Pearls is very drought tolerant once established. Hummingbirds love the nectar-laden, trumpet-shaped blossoms. An easy-care perennial.


Type: Perennials
Height: Tall 42"
Spacing: Plant 36-42" apart
Bloom Time: Early Summer to Mid-Summer
Sun-Shade: Full Sun to Mostly Sunny
Zones: 3-8   Find Your Zone
Soil Condition: Normal, Sandy
Flower: Pink
Accent: White
Patent: Pending
Pot Size: 3.5" square x 4" deep

Features to Note

  • Beneficial for Pollinators
  • Attracts Butterflies
  • Good for Cut Flowers
  • Hot Dry Site Tolerant
  • Attracts Hummingbirds
  • Long-Blooming
  • Seaside/Salt Tolerant

Penstemon General Information

Penstemon are an American native with colorful tubular bell-shaped flowers. Will attract butterflies and hummingbirds and does well in a drier climate. Drought resistant once established. Waxy green foliage stays lush through summer's heat. Avoid too moist (wet feet). Songbirds feast on the seed in fall and winter. Idaho has restricted all potted plant material from being shipped into Idaho at this time.

Penstemon Plant Care

Best in loose, gravelly soil with good drainage. Pinching back taller varieties when about 12" tall will produce more compact plants. Can be divided every 3-4 years in spring by digging mature rhizomes and replanting. Will self sow. Foliage can be trimmed after blooming to freshen. Clean up in fall or spring. May benefit from dry winter mulch in colder zones.