I've had the same experience with Canadian Amelanchier here in Indiana.
The plants continue to live, but that's about all that can be said for
them.
I've pretty much decided to wave my magic spade and turn them into asian
pears, which do grow very nicely and are gratefully gobbled down by
everybody.
-sb
zone 5b
[NAFEX] now: Amelanchier,
Stefan Brandle, 10/30/2004