Agave havardiana Glass Mountain Opuntia Iris cristata 'Powder Blue Giant'

Iris cristata 'Powder Blue Giant' is a superb form of our native deer-resistant Iris cristata

This rare native was named for the late botanist George Letterman who

but with an insignificant fragrance

twisted leaf dwarf cultivars

most with a narrow pink edge

Agave havardiana Glass Mountain Opuntia Iris cristata 'Powder Blue Giant'Agave havardiana 'Glass Mountain' is a fascinating strain of the US native Agave havardiana. This Alan Bradshaw seed collection from 5,000' elevation in the Glass Mountains of Brewster County, Texas, produces fast growing, very blue plants with an extraordinary number of teeth (for the species), and a scabrous leaf back, indicating that at some past time, a promiscuous Agave asperrima might have been nearer than its current 300 mile separation. The