Sempervivum calcareum 'Sir William Lawrence' (Sir William Lawrence Housleek, Sir William Lawrence Hens and Chicks)
Botanical Information
| Family | Crassulaceae |
| Genus | Sempervivum |
| Species | calcareum |
| Cultivar | 'Sir William Lawrence' |
| Category | Perennials |
Details
| USDA Hardiness Zone | 7b - 8a |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 7 |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H5 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -15 - (-9) |
| Temperature (°F) | 5 - 15 |
Description and Growing Information
| Habitat | Horticultural origin. |
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