QuestionsHow to growTrees and ShrubsWeedsWeed & grass control around a hedge. 0 Vote Up Vote Down Tom McLaughlin asked 14 years ago Can I use Glyphosate around a Grisilinia hedge that was planted last year? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 6 years ago Roundup can be used around hedges but be careful not to get spray or drift onto the griselinia, even the stem.