|V. tricolor, an annual, biennial and at times a short-lived perennial has rhizomatous stems that spread, and heart shaped leaves to 1 3/4 inches. This plant blooms in shades of purple, lavender-blue, white or yellow with the upper petals dark purple, and lower streaked purple, in spring and summer. This species is short-lived but self-seeds freely. The cultivar, 'Prince John' blooms in small bright yellow flowers from sping to summer.