On Wed, 17 Jul 2013 17:00:32 +0100, "Indigo"
wrote:

Is this plant as invasive as is often said? I'm tempted to plant it as
another ground coverer under a purple prunus, where it's shady but gets
rather dry, and let it run about under the Lunaria, Hellebore foetidus
and foxgloves. Would it seed around all over the place and try to
strangle everything in sight?

I was given some by a freind with the warning that it was invasive. I
much regret planting it. It forms a network of roots and is impossible
to remove completely once it gets entwined with other plants.
I have seen patches of it in flower in other gardens where it has room
to spread in but in my small garden it is a nuisance!

Pam in Bristol