Plant Calculator

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

Approx. Length (ft):
Approx. Width (ft):
*Distance Between Plants (in):

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

Heuchera 'Obsidian'

Coral Bells

  • Black and shiny, smooth rounded leaves
  • A great performer with a compact habit
  • Holds it's color all season.

  • Category: Perennials
  • Patent: PP14836
  • Hardiness Zone: 4-9
  • Height: 10-24 in
  • Spread: 12-15 in
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Exposure
Full Sun
Partial Sun
Foliage Color
Almost Black
Soil Moisture
Moist, Well-Drained
Habit
Mounding
Season of Interest (Flowering)
Spring
Summer