QuestionsHow to growTrees and ShrubsHedges and Shelter beltsPruning Griselinia 0 Vote Up Vote Down Naish Kelly asked 14 years ago Griselinia Hedge about 8 ft high and 6 feet thick 20 yds long May be killed by last winter’s frost. Would like to prune sides by about 1 foot each side on off-chance that it may revive. Should I? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago There should be signs of recovery by now and it might turn out that the entire hedge will have to be cut down.