Posted: 17/04/2014 at 14:05
Don't worry lavande(r) it isn't knotweed I am interested in.
I think I will take your advice gingly,let them get bigger with more established roots and whilst it's warm take some cuttings.
I have done this in winter with sea holly and acanthus with limited success. The warmth might help?
I will try that link later Dave when the kids are in bed. Got to plant some asters that I pinched from the in-laws before they dry out