Native to moist woodlands in Canada, northern United States and Greenland, Labrador violet does well even in much of the South. It is a low growing herbaceous perennial and spreads by creeping rhizomes and self-seeding. The heart shaped leaves are one inch across and tinged with purple. The mauve flowers are ¾ inch wide and suffused with purple. They appear in spring and fall and sporadically all summer long in regions with cool summers. Labrador violet can be used as a ground cover, is an excellent choice for a rock garden and can also be grown in a container. This plant is thought to be the same as Viola riviniana Purpurea.
Type: Herbaceous perennial
Bloom: Mauve flowers, ¾” wide, suffused with purple in spring
Size: 1-4” H x 12” W
Light: Part shade, but tolerates full sun in northern part of its range if moisture is sufficient
Soil: Fertile, moist, well-drained
Hardiness: Zones 3-8
Care: Shear back after first flowering to encourage rebloom in fall
Pests and Diseases: May be attacked by slugs
Propagation: Seed, division
Companion plants: Hosta, barrenwort (Epimedium) bleeding heart, lungwort (Pulmonaria).