Posted: 17/04/2013 at 18:24
Vigilance and persistence is the solution to buttercup.
Digging it thoroughly or spraying.
The worst possible place for,it is amongst hardy geranium as the leaves are similar and totally entwined. I dig up the geranium and pull apart and pot up clean pieces.
I have eradicated it from my garden this way but a friend, who is less persistent, has a real issue with it. Dig out every piece as soon as seen