is there somebody I can contact in Nafex to ask about grafting onto black
cherries? I found two references online, which have more or less
contradictory info:

http://64.233.167.104/search?q=cache...5&ie=UTF-8

says that various different cherry grafts were tried on wild black cherry
and they didn't work. They don't seem to have tried a sweet cherry graft,
though, but sour cherries.

http://delta.ulib.org/ulib/data/moa/...b00/9/data.txt

seems to indicate you can use wild black cherries as the rootstock and it
will make the tree grow tall ...

Laura