QuestionsHow to growFlowersBorder Perennial FlowersGeranium endressii 0 Vote Up Vote Down Breda Reilly asked 14 years ago I am getting rid of a flower bed which has alot of Geranium Endressii in it. I was just wondering if I sprayed them with a weed killer would it kill the roots also as there are too many of them to dig up. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Geranium endressii can become weed-like and you can spray it with Roundup to kill it and repeat if it you miss bits or there is some re-growth.