QuestionsHow to growTrees and ShrubsChoosing trees and shrubsproblem with shrub 0 Vote Up Vote Down Lauri Keenaghan asked 14 years ago Hedge “silver queem” pittosporum tenuifolium badly effected by cold weather no signs of any growth. should i wait a little longer 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago The signs are not good for that hedge. Pick away some bark at soil level and if it is brown underneath, it will not recover.