Obsidian Alum Root
Heuchera 'Obsidian'
Overview
Heuchera 'Obsidian', known as Obsidian Alum Root, is cherished for its stunning, nearly black, glossy foliage. This evergreen perennial forms a compact mound about 10 inches high and 16 inches wide. In late spring, delicate cream flowers on slender 20-inch stems rise above the leaves. It prefers partial shade and moist, well-draining soil. Hardiness ranges from USDA zones 4-9, adding a dramatic touch to borders and containers.
Sun Half, ShadeWater Low, MediumZones 4–9
Culture
- Sun
- Half, Shade
- Water
- Low, Medium
- USDA zones
- 4–9
Shape & size
Classification
- Family
- Saxifragaceae
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