After planting these several years ago, we have been impatiently waiting for them to bloom. Last year we got three whole flowers on one of our three trees and none on the others. Last fall I said, 'If they don't bloom in the spring, I'm pulling them out!' Eric did some research and it turns out that cherries take several years to get settled.
This was the magic year. Blooms covering all three trees - 2 sweet cherries and 1 sour. Maybe pie this year?