This plant is very marginally hardy in my parent's zone 7 yard in Staten Island NY. Ive had them survive mild winters (and spread vigorously!) but last year it did not bloom and I have lost it entirely in years past.
After a mild year though it's out competing my American Wisteria! The first blooms of the season opened this week and it looks like more will be on the way!
Interestingly, the blooms only seem to appear on the vines that dangle downward. I've noticed this every time I've grown this plant.
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