QuestionsHow to growFlowersBorder Perennial FlowersPersicaria pendulata 0 Vote Up Vote Down Anne Miller asked 16 years ago will i need to protect this shrub in winter here in Roundwood 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Perhaps you mean Persicaria campanulata , which will die down and does not need protection.Â