QuestionsHow to growLawnsWeedscreeping buttercup in lawn 0 Vote Up Vote Down Patricia Lee asked 16 years ago Creeping buttercup has taken over a sizeable part of my lawn. The lawn was sown 12 months ago. What is the most effective way of getting rid of this? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Some people love the buttercups but if you don’t, it is easily controlled with lawn weedkiller, applied as per instructions.