Annual Biennial
An upright biennial bearing ovate to heart-shaped, toothed, dark grey-green leaves and violet-blue flowers in late spring and early summer, followed by flat, green seed pods. When ripe, the outer covers peel away to expose silvery, paper-like discs.
Position
Full sun, Partial shade
Soil Types
Loam, Clay, Chalk, Sand
Max Height
0.5-1 metres
Max Spread
0.1-0.5 metres