Posted: 30/07/2013 at 21:38
Grim the Collier, Hieracium aurantiacum, dear me what a terrrible thug that is. I have never planted it but somehow it has appeared and even with liberal amounts of Verdone weedkiller, it is as bad as Clover in the 'lawn'. The other Hieracium which can be a real seed weed is. H. maculatum, the one which looks as if someone has dripped black ink on the leaves.
A couple of fill the space rapidly plants for me are Ceratostigma plumbaginoides, but despite filling a huge space, I cannot get pieces of it to grow elsewhere and Perovskia atriplicifolia,Russian Sage. New pieces are now coming up in the lawn from the border where it is planted.