Sempervivum × giuseppii
| Sempervivum × giuseppii | |
|---|---|
| Habit | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Saxifragales |
| Family: | Crassulaceae |
| Genus: | Sempervivum |
| Species: | S. × giuseppii |
| Binomial name | |
| Sempervivum × giuseppii Wale | |
Sempervivum × giuseppii, the roof houseleek, is a naturally occurring hybrid species of flowering plant in the family Crassulaceae, native to northwest Spain. Its parents are Sempervivum arachnoideum and Sempervivum cantabricum. A succulent, cold-hardy to USDA zone 7, it has gained the Royal Horticultural Society's Award of Garden Merit.