Great Plains Yucca
Zone 3
Exceptionally hardy Yucca.  Forms a large rosette of strap-like, grey-green foliage lined with curly white filaments.   Produces large, white, cup-shaped flowers on a sturdy 'needle' -- usually in mid-summer.  Needs a hot, sunny, well-drained location.  Drought tolerant.  Hates winter wet.  Salt tolerant.  HEIGHT:  80-150 cm  SPREAD:  60-80  cm
Image Courtesy of NVK Holdings
3 gallon container