Posted: 28/10/2014 at 10:45
Cannot agree with Obelixx on this occasion. It is not easy to control. I have been pouring weed killer on a section of a border for over 5 years now to try to get rid of this utterly pernicious weed and I noticed today that there is new growth appearing.
Never, never, never ever plant it, except n a concrete pot where its roots cannot escape.