Cylindropuntia imbricata 'Colorado Snow'
Cylindropuntia imbricata 'Colorado Snow' is our introduction of a white-flowering Tree Cholla. The original plant is from Pueblo, Colorado. Plants should be zone 5 for cold hardiness as the area historically got to -25F but in summer reaches temperatures of 110F. This plant has performed well for us but is best if pruned at the base to encourage a strong upright growth. This plant differes from the others on the market in that if you water after it blooms and periodically do so, it will bloom until fall. Plants generally bloom from May-July but as stated can be later. This plant is a very heavy blooming plant. More than typical magenta tree cholla. Plants for sale are well rooted Large stems in 5" pots. About 16" long or more.
I do not guarantee these in a zone 5 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.
"Winter Dormant" Plants have been kept outside under an unheated greenhouse and can be shipped bare-root without heat packs as long as temperatures are above 10F in your area. Would still wait to plant in spring to adapt better to your garden.
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