These plants are used as bedding and edging, and in showy container displays. They all have flat, dainty, single flowers and the perennials have green, heart-shaped leaves while the annuals have green, ovate, deeply lobed leaves. V. cornuta, is a rhizomatous plant, growing 6-12 inches tall. It bears fragrant, 1-2 inch, solid or bicolor, yellow, blue, purple, red, or apricot flowers. Hardy from Zones 6-9. V. odorata is also rhizomatous. It grows to 4 inches tall. The spring flowers are 1 inch diameter, sweetly fragrant, and colored bright or deep blue. Hardy from Zones 6-8. V. tricolor, Johnny Jump Up, is a mounded plant 10 inches tall. It bears petite flowers that are tricolored purple, yellow, and white. Grown as an early spring annual in the heat of the South, however it is hardy to Zone 4. V. x wittrockiana, Pansies and Violas, grow 9 inches tall. They bear robust, 3-4 inch flowers with solid, blotched, or faced patterns in colors of red, purple, blue, bronze, yellow, white, pink, lavender, or orange