Posted: 03/08/2014 at 18:43
I have eradicated anemone jap ...I thnk. Aagree though that it is a survivor and hard to kill.
Digging, if,possible.....viz.,in soil with no other plants ......is a solition. Like bindweed, get every piece.
I think it will escape any barrier....either going deep or over the top where you domt see it.
I would not grow jap anemones though. I grow a hybrid, wild swan, which is infinitely better, lomger flowering, well behaved and has a bonus of a blue reverse on the petals