QuestionsHow to growTrees and ShrubsHedges and Shelter beltsFertilising a Grisilinia hedge 0 Vote Up Vote Down Tom McLaughlin asked 15 years ago I planted a Griselinia hedge last year and I would like to know what fertiliser you would recommend for strong, fast growth. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago If the soil is fertile, it needs no feeding. If not, feed with 30g of tree and shrub fertiliser or general fertiliser per 1 metre run of hedge on both sides, in March. Control weeds and grass for 50cm on both sides.