On 17/07/2013 17:00, 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?





It depends on just how much space you're prepared to let it colonise,
but I don't find it at all unmanagable in my shade garden. I love it.
Indeed, I wouldn't complain if it spread more quickly. I think the fact
that your soil is on the dry side (it prefers moist but well-draining
soil) will tend to hold it back a bit, as will your prunus tree. Keep
it watered until it's established, then I'm sure it will be fine. After
all, Hellebores like moist but well-drained soil, so it should be fine
so long as it gets its roots down.

--
Spider
from high ground in SE London
gardening on clay