Penstemon Onyx and Pearls
Penstemon Onyx and Pearls
Penstemon Onyx and Pearls
Penstemon Onyx and Pearls

Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Penstemon 'Onyx and Pearls' you will need.

Approx. Length (ft):
Approx. Width (ft):

*Correct and successful spacing is complex and depends on project conditions.

Penstemon 'Onyx and Pearls'

Penstemon

  • Striking purple foliage
  • Tall upright habit
  • Creamy white flowers
  • Ideal for the perennial border

  • Category: Perennials
  • Hardiness Zone: 3-8
  • Height: 36-42 in
  • Spread: 36-42 in
  • Spacing: 36-42 in
  • Bloom Color: White
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