Obsidian Coral Bells
Heuchera ‘Obsidian’ · a black-leaf coral bells
A coral bells grown for compact mounds of near-black, deep purple leaves that stay dark all season, with small creamy flowers in early summer, an easy edging for borders and pots. It does best in part shade with afternoon shelter, in rich, well-drained soil; in sun keep it moist, and divide it every few years.
- Mature size
- 10 in × 1 ft
- 0.3 × 0.4 m, tall × wide
- Hardiness
- Zones 4a–9b
- USDA
- Sun
- Part sun to part shade
- Water
- Medium
- Blooms
- Jun–Jul
Obsidian Coral Bells at its mature size
A mature Obsidian Coral Bells grows to about 10 in tall and 1 ft wide.
Drawn to scale beside a 5 ft 9 in person. With VeraScape, you see it at this size in your own yard.
Typical mature size, unpruned. Sources: waysidegardens.com.
Through the year
What Obsidian Coral Bells looks like month by month in a typical zone 6–7 garden.
Winter · Dec–Feb
Smaller, duller dark leaves lying closer to the ground.
In leaf · Mar–Nov
Glossy near-black rounded leaves.
Photos
Growing Obsidian Coral Bells
- Grows well in
- The Northeast, the Southeast, the Midwest, and the Pacific Northwest.
- Good for
- Groundcover, shade garden, deer resistant, and pollinators
- Leaves
- Dies back in winter
- Native to
- North America
Spacing
VeraScape spaces plants so their grown canopies just touch. For Obsidian Coral Bells, that’s about 1 ft apart, center to center.
Place a row in your own yard and VeraScape spaces them at their mature width, so you can see whether they’ll crowd the walk.
See Obsidian Coral Bells in your yard before you dig
Visualize it at its true size, alongside the rest of your design.
Other coral bells
Obsidian Coral Bells
Coral Bells
Lime Marmalade Coral Bells
Palace Purple Coral BellsAll drawn to the same scale.