Viola corsica
Common name(s): Corsican pansy, Corsican violet
Description: perennial; large indigo flowers bloom from spring through most of fall. Incredibly cold hardy and easy to grow. Can be short-lived in poorly draining soil but will continually seed around the garden into all sorts of nooks and crannys if left to its own devices.
Height: to 8 in. Spread: to 12 in.
Position: partial shade and well-draining soil
Uses: ornamental
Winter Hardiness: to 0 F and below
Drought: adapted to 4 months of summer drought
Distribution: Corsica, Sardinia