Dierama pulcherrimum is a terrible weed here and I have to pull masses of it up ever year but I can't deny it looks lovely dierama pulcherrimum012 by charliepridham, on Flickr
Anyone growing any of the named forms? and if so how do you stop it seeding down and diluting the clump?
I have D p alba which is sending up 7 " rods " at the moment the best ever .It has taken forever to bulk up and I cant see any seedlings either, shame as its a a lovely plant .