In article ,
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?

No. It root runs, but does not seed much, and it doesn't strangle
anything. It is also shallow-rooted, and easy to get rid of if
you need to. Lunaria will strangle it, unless you keep its seedlings
under control.


Regards,
Nick Maclaren.