QuestionsHow to growTrees and ShrubsFrost damagetree and shrubs winter damage 0 Vote Up Vote Down Eileen Keohane asked 15 years ago Mimosa tree lost all leaves and branches seem dead.Dimosa ‘pink fountain’brown and falling foliage,no new growth anywhere. Sweet pea shrub, planted last summer,lost leaves since winter,no sign of life Are they really dead? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago The mimosa and others might well be dead, but wait and see if there are signs of recovery in the coming weeks.