I'm still getting light frosts on some mornings, enough to have killed the sweet potato vine starts I too eagerly planted out. Guess I'm not past my frost-free point yet. My pear is in full bloom, but the cherries are just starting to open. I like to tie things to earth dates, and will check to see if the cherry in full bloom may be an indicator of some sort. I have two cherries and they bloom about the same time (sweet Sam and sour Montmorency)