In the wild this European native is found in damp woodland on chalk, although in cultivation it seems willing to grow almost anywhere, and in fact generally chooses the places where it feels most at home by self-seeding! It bears fragrant, purplish flowers in late spring and early summer which are followed by decorative mother-of-pearl coloured seed pods, but unlike on the annual forms, these are elliptical in shape, and taper to a point.
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