Question
I am trying to identify a 'snow fountain' cherry tree I recently purchased and was hoping you could tell me the differances between Prunus x yeodensis(snow fountain) ,Prunus x Snofozam(snow fountain) and Autumnalis.I would say it is one of these three. I have a limited amount of space to plant so to know mature sizes is important. Also, this variety I am trying to identify was dug  in a nursey field in the fall and I noticed it had already lost all its leaves before it was dug many weeks earlier than all other weeping cherries I have seen, Could that be a clue to its variety?Thank you for your help

Answer
Prunus x yeodensis(snow fountain
http://www.hort.uconn.edu/plants/p/pruyed/pruyed1.html


Prunus x Snofozam(snow fountain
http://www.northbranchnursery.com/2006%20Trees/Prunus%20x%20'Snofozam'%20Weeping...


Autumnalis
http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/prunus_subhirte...

Prunus x Snofozam(snow fountain) is the smallest of these three. Without looking at the trees in person it is hard for me to tell you which is which. I would go to a nursery that has all three and ask them and look at the labeled trees and compare them with yours. The above sites may also help.