The question was asked about using Prunus americana, native American plum, as
a rootstock for peach. I budded some peaches onto native plum roots 5-6
years ago with mixed results. Each year they put on a nice growth of 2-4'.
The grafts seem plenty strong as they hold up against our high winds.
However they probably have had at least 90% dieback each winter. Last summer
I mounded some earth up around them to try to get the peach to self-root and
they appear to have overwintered very well this time, but of course I'm not
sure there's a connection. I was going to remove them this spring if they
had severe dieback, but it looks like they might be pardoned another year.
Mark
Northeast Colorado
zone 4 and windy
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