| Description | Obsidian Coral Bells (Heuchera) is considered one of the darkest-colored Coral Bells, with dark purple to almost black foliage. |
|---|---|
| Pronunciation | (HEW-ker-ah) |
| Plant Type | Perennials Hardy, Site author's observations |
| Hardiness Zone | 4-9 |
| Sunlight | half day morning sun, part sun, may burn in full sun |
| Moisture | average, avoid hot and dry |
| Soil & Site | average |
| Flowers | Small chartreuse flowers borne in airy panicles on a wiry stem. |
| Leaves | The leaves are shiny, deep purple, almost black. The color will vary widely depending on the amount of light and the time of year. |
| Dimensions | 10-12 inches tall by 16 inches wide |
| Maintenance | Depending on the species, some Heuchera produce many flower scapes, which should be deadheaded regularly. I prefer to gently remove the dead leaves in the spring, as gentleness is essential; some Heuchera do not form sturdy clumps, and pieces can easily break off. Heuchera is susceptible to frost heave, so applying mulch can help prevent it. Additionally, gently pressing or digging into the plant's back into the ground in the spring is a good practice. As the plants age and develop thick, heavy stems at the base, rejuvenation through division may be necessary. |
| Propagation | division of the clump |
| Cultivar Origin | Terra Nova Nursery, 2000 |
| Misc Facts | The genus Heuchera is named in honor of 18th-century German physician and botanist Johann Heinrich von Heucher. |
| Author's Notes | Over the years, I have cultivated and observed many Heuchera varieties. When I ran a nursery, "Palace Purple" was the most popular cultivar. Now, there is a mind-boggling array of options available. I think the best place to grow them is in an area that receives partial sunlight, such as an east-facing exposure, where the plants aren't subjected to intense heat. If they are planted in full sun, they may require additional moisture, or foliage may burn and become crispy. |
| Notes & Reference | #105-Heuchera and Heucherellas (Dan Heims, Grahame Ware), #119-Heuchera, Tiarella and Heucherella A Gardeners Guide (Charles and Martha Oliver), #274-Site Authors' observations and growing experiences of different Heuchera |
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