Perennials > Helleborus > Helleborus orientalis > Helleborus orientalis 'Black Strain'
Helleborus orientalis
'Black Strain'
| Family |
| Ranunculaceae |
| Genus |
| Helleborus |
| Species |
| orientalis |
| Cultivar |
| 'Black Strain' |
| Category |
| Perennials |
| USDA Hardiness Zone |
| 6 |
| Canadian Hardiness Zone |
| 5a - 6a |
| RHS Hardiness Zone |
| H6 - H7 |
| Temperature (°C) |
| -23 -(-18) |
| Temperature (°F) |
| -10 - 0 |
Photographs
Description and Growing Information
Flowering Period
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