Cultivation Details:
Prefers damp shady conditions[12, 13, 200] but succeeds in most soils[200]. Prefers a well-drained soil, succeeding in sun or shade[238].
Plants are hardy to at least -15°c[200].
This species was formerly cultivated as a medicinal and food plant[5, 17, 177].
A very invasive plant, spreading freely at the roots[4, 53, 208], though it seldom sets seed in Britain[208]. Once established it can be very difficult to eradicate because any small piece of root left in the ground can regrow[K]. If introducing this plant to your garden, it might be best to restrict the roots by growing the plant in a bottomless container buried in the soil[238]. There is a variegated form of this species that is less invasive and is sometimes grown in the ornamental garden[208].
Plants seem to be immune to the predations of rabbits[233].
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