Zone 6a - PA - Haskap survive frost

Blossoms survive 20F

Unopened blossoms next to maturing berries

I started getting blossoms on my honeyberries about a month ago (Cinderella, Borealis, Berry Blue, Blue Belle, Blue Velvet and Sugar Mountain).
The temps got down to 20 degrees on Saturday night (4/9/16) and it did not hurt my blossoms or any of the fruit sets (Very happy to see this!) My other fruit trees(sweet cherries) that were in full blossom appear to have lost the fruit but if the trees (pears) with blossoms that were not in full bloom were fine and bloomed on Monday.  I think Spring is finally in Pittsburgh!!

Rusell, Pittsburgh, PA