Yucca harrimaniae Gunnison co, CO
Yucca harrimaniae or Harriman's Yucca. Seed was collected near Gunnison, Colorado. Rosettes have stayed between 5 and 8" in diameter. Plants have taken -22F in our garden and are subject for trial in your garden. In the wild plants have taken -30s and rarely get above freezing in winter. Has to be one of the most cold tolerant Yucca species.
I do not guarantee these in a zone 5/6/7 because everyones growing conditions are different but this would be a good trial plant to grow in your cold outdoor garden. Try to plant outdoor 90 days before 1st hard freeze.
Shipping: Packages can be held for a specific date. Please see our shipping section for information.