Lithospermum purpurocaeruleum (Purple Gromwell, Stoneseed, Pearl Plant)
Botanical Information
| Family | Boraginaceae |
| Genus | Lithospermum |
| Species | purpurocaeruleum |
| Synonyms | Buglossoides purpurocaerulea |
| Category | Perennials |
| Origin | Japan. |
| Ethnobotanical Uses Disclaimer | The hard "stone-like" berries are used in some cultures, and also in western naturopathy and homeopathy, for various remedies including external treatment for rashes. Traditionally, Lithospermum purpurocaeruleum has been used to make a purple die in Japan. |
Details
| USDA Hardiness Zone | 6 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 5a - 6a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -23 - (-18) |
| Temperature (°F) | -10 - 0 |
| Height | 50 cm |
| Spread | 50 cm |
| Flowering Period | May, June |
Description and Growing Information
Photographs
