QuestionsHow to growFlowersBorder Perennial Flowersdivide rheum palmatum 0 Vote Up Vote Down Alan Stenson asked 14 years ago can rheum palmatum be divided? my plant is about 3 years old and its now got some very small re buds. the base of the plant is like 2 soda breads side by side 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 6 years ago Rheum can be divided like rhubarb … split it with a spade.