It grows in woodlands and wet places on calcareous soils or peat
fen. It prefers a shady
Native perennial of medium
height (up to 50cm) with attractive deep purple flowers from May to
July. It has long been
cultivated as a garden plant and many cultivars have been bred from it.
Sowing Instructions for Seeds:
For best results sow in late winter in coldframe. Prick out into
pots and plant out in late spring or early summer.
May be slow to germinate.
plants and seeds are of native British origin.