Heuchera 'Obsidian' [sold as Obsidian Coral Bells]
Obsidian Coral Bells
Other Common Names: Coral Bells

Family:

Saxifragaceae (Saxifrage Family) 29

Genus:

Heuchera (Alumroot Alum Root Coral Bells Coralbells) 10

Plant Type:

Herbaceous 480

Growth Forms:

Clump-forming 58

Hardiness:

USDA Zone 4 546

Flower Notes:

Small, creamy white flowers appear in late spring to early summer.

Foliage Notes:

Dark purple to almost black leaves remain dark throughout the growing season. Rounded, lobed leaves about 8-10” tall and 16” wide.

Stem Notes:

Wiry, purple to dark red stems with white flowers rise well above the foliage.

Fruit Notes:

Small, dry, capsule-like seeds appear after the creamy-white flowers fade.

Ultimate Height:

1-2' feet

Ultimate Spread:

0.75-1.5' feet

Bloom Times:

Light Requirements:

Full Sun to Partial Shade

Soil Water Requirements:

Medium 238

Soil Notes:

Grown best in organically rich, humusy, medium moisture, well-drained soils.

Range:

Primarily native to the West, particularly in the Rocky Mountains, with a few species extending into northern Mexico. Woodland areas, Appalachian seeps, prairies, rocky cliffs and alpine slopes.

Maintenance:

Low 330

Purdue Plant Doctor

Parts and Problems of Coral Bells

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