Heuchera Obsidian

Coral Bell, Alum Root

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Its rich color showcases all other colors in the garden.
Broad black satin leaves will not fade, even in the sun. Its rich color showcases all other colors in the garden. Cream flowers provide a dazzling contrast to the ebony foliage. Strong and consistent performance.

Note: This is an archive page preserved for informational use.
Cultural and Growing Info is provided below.

Its rich color showcases all other colors in the garden.
Broad black satin leaves will not fade, even in the sun. Its rich color showcases all other colors in the garden. Cream flowers provide a dazzling contrast to the ebony foliage. Strong and consistent performance.

Code HEOB

Patent

Plant Type Perennials

Species

Height Short 10" (24" in flower)

Spacing Plant 10-18" apart

Bloom Time Late Spring to Mid-Summer

Sun / Shade Full Sun to Half Sun / Half Shade

Zones 4-9

Soil Type Normal, Acidic

Sold In Plantable Pots (3.5x3.5x4")

Special Product

Bluestone Classics

You can't go wrong with the classics! These tried and true varieties are our staff's top picks for gardeners looking for low maintenance plants that will dazzle in the border.

Special Features

  • Attracts Butterflies
  • Good for Cut Flowers
  • Evergreen
  • Attracts Hummingbirds
  • Edgers
  • OK in Containers

Heuchera General Information

Heuchera make excellent border plants with their nearly evergreen foliage in neat clumps. Dainty flowers are held aloft on airy stems May through July. These versatile perennials can be used in a shady courtyard pot or as a groundcover under deciduous trees. Prefers average to moist soil conditions. Idaho has restricted all potted plant material from being shipped into Idaho at this time.

Heuchera Plant Care

Benefits from deadheading. Watch for frost heaving - mulch can help. In cold climates, winter mulch applied after the ground freezes will help prevent root heaving. It keeps the mature crown in contact with the soil and keeps the soil moist in the summer as well. Must have good drainage over the winter, though, so don't over-do the overwintering mulching. Shear off any damaged leaves in early spring to make room for new foliage. Can be divided every 3 years in spring.

Plantable Pots

Our plants are grown in 3.5x3.5x4” plantable pots. Made from 100% biodegradable coconut husk fibers (coir), these pots have tremendous advantages over plastic pots. With better air exchange, this "breathable" pot fosters robust root growth and reduces transplant shock since you can plant the pots directly in the ground. The pot naturally becomes part of the soil on its own over time—no composting required—and since they're made from a renewable resource that requires very little energy, they're earth-friendly too!

100% Guarantee

We offer a 100% guarantee for all our perennials to reach you in good condition and to grow. If you're not satisfied, we'll reship or refund immediately. Please don't hesitate to contact us if you have questions or concerns—we share your passion for gardening and want your new plants to thrive in your border!

Shipping Details

We use custom, earth-friendly packaging to make sure your order arrives in great condition, and we ship based on the best planting time for your growing zone (see the approximate dates below), unless otherwise indicated at checkout. If you wish, you can indicate a specific ship date during checkout.

Spring

  • Zones 3, 4: Early to Mid May
  • Zone 5: Late April to Early May
  • Zone 6: Mid to Late April
  • Zone 7: Early to Mid April
  • Zones 8, 9 10: Early April

Fall

  • Zone 2, 3, 4: Early September
  • Zone 5: Early to Mid September
  • Zone 6: Mid September
  • Zone 7: Mid to Late September
  • Zone 8, 9, 10: Late September to Early October

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