Yucca desmettiana

Nowadays also called Yucca aloifolia 'Purpurea' is a soft leaved Yucca which has graceful, arching, long broad leaves, they emerge bluish grey and mature to become burgundy in colour.
Usually a single stem rosette when young and become multi trunked with age.
Becomes 1.5 m high by 1 m wide, can withstand -5 till -10°C.