Quote:
Originally Posted by echinosum
I have absolutely no idea whether Griselinia will sprout again from the roots when frosted to the ground,
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I have just found this
Griselinia littoralis PFAF Plant Database which says it does often regrow when frosted. It also says it survives down to about -10. So if it was never anything like -10 where you are, then frost might be the wrong answer.