Grows just like pansies in all respects. Also known as Johnny Jump-up and Horned Violet. The beautiful blossoms resemble violets but are slightly larger and more tolerant of heat and drought. Flowers all summer long in sun or partial shade. Promiscuous hybridizer with all other violets. Self-sows readily. Again just like pansies, viola cornuta is a short lived perennial that is best in its first year of growth. As such they are typically grown as very hardy annuals in most parts of Canada.
How to Grow
750-1000 seed/gram. Sow directly outdoors anytime spring through fall or start 10 weeks early indoors in a soil-less mix at 3 mm (1/8″) depth. Germinate at 20 C (70 F) for 7 to 14 days then grow on at a slightly cooler temperature before hardening off and transplanting outdoors after the danger of frost has passed. Needs darkness to germinate. Space plants 15 cm (6″) apart in the garden. Cut back in mid summer when these plants tend to get straggly. This often encourages new growth and further bloom when temperatures moderate in late summer/early fall.