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Does frost/freezing actually damage
callusing grafts (apple, pear, cherry), or does it just slow the process
down? All texts I have seen only specifiy daytime temperatures as
guidelines for grafting. No mention is ever made of
concerns about low temperatures. Our
wildly fluctuating spring temperatures will definitely expose new
grafts to frost/freeze if following only daytime highs. Just wondering if
it's better to wait for much warmer temps, and risk scion drying, or do it while
still cool with risk of freezing. Mark
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