| Common Name | Foamy bells |
|---|---|
| Family | Saxifragaceae |
| Genus | Heucherella |
| species | hybrid |
| Plant Type | Perennial |
| US Patent # | PP29926 |
| EU Grant # | -- |
| Bloom Time | June, July |
| Flower Color | -- |
| Foliage Color | Black, Purple |
| Dormancy | Winter |
| Exposure | Full Sun, Part Shade, Full Shade |
| Growth Habit | Mounding |
| Growth Rate | Fast |
| Hardiness Zone | 4, 5, 6, 7, 8, 9 |
| How Different? | -- |
| Landscape Value | Mass planting, accent, container, border or mixed beds. |
| Most Active Growing Season | Spring |
| Persistence | Evergreen |
| Size (HT/W/FL HT) | 10" / 16" / 15" |
| Soil (Garden) | Prefers well-drained, humus rich soils. |
| Water (Garden) | Average. They like more moisture than the Heuchera. |
| Special Uses | Deep South, Winter Color |
| Comments | -- |
Heucherella ‘Onyx’
True black, glossy, deeply cut leaves on a dense medium size mound make this a great landscape plant. We've been working for years to get a good black Heucherella. This is it. Loves heat and humidity but great in the northwest. Shy to bloom – always stays neat and clean. Great foliage for mixed containers.
USDA Hardiness Zone(s): 4-9
Size (HT/W/FL HT): 10″ / 16″ / 15″
Exposure: Part Shade, Full Sun, Full Shade
Bloom Time(s): June, July
| Water (Greenhouse) | Dry moderatley between waterings. |
| EC | 0.6 – 0.9 |
| pH | 5.5 – 6.5 |
| Fertility Needs | 100 – 150 ppm |
| Notes | Be careful not to bury the crowns when planting. |
| Finish Time to 4″ | 4 – 6 weeks |
| Finish Time to Gallon | 8 – 10 weeks |
| Day Length for Flowering | Day Neutral |
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