I've got 8 trees in zone 4 Maine, planted 2007.
No fruit yet.
Clay-loam soil, kind of soggy.
Trees are alive but.....
I'm probably not a good source of info.
Ask me again in Sep of 2012.
Murph
R A Murphy Jr
[nafex ibiblio list] Blake's Pride,
Richard MURPHY, 12/27/2011