Yucca

Rosette forming woody based perennial,evergreen shrubs, bold lance shaped leaves eventually forming trees.

Height: 6 -8ft

Hardiness: Depends on the variety Y.filamentosa Y.flaccida & Y. gloriosa all are quite hardy in this area.

Propagation: Sow seeds in spring in a propagator 60F or take rooted suckers in spring.

Notes: Great architectural  plant probably looks it's best as a specimen. Good for growing in large pots.