We continue to hear this question from our customers, friends, and neighbors: My apple tree is blooming, will it be damaged by freezing temperatures? Fruit tree blooms can actually take a few degrees below freezing and still be okay–I found a chart to help you gauge the risk. It’s a pdf file, so it takes a while to load. It’s good information, so worth the wait!
http://orchardkeeper.com/pdf/IllustratedSpringFrostDamageThresholds.pdf