May 7th is the 2012 date for the first apple blossom, though on a single tree so far. The rest of the apples are still in wait. European Pears and American Plums have their first blooms out or are close. David Pear (ussuriensis cross) has been in flowere since April 24.
Others of note: Nanking cherries open on 4-23, native Juneberries the next day. Other phenological markers that week were violets, bluets, and were all preceded by coltsfoot. Dandelions made their debut about Mayday.