How to Grow Johnny Jump-Ups From Seed

Johnny Jump-Ups are hardy little violas that love cool weather. Sow in early spring for spring and summer bloom, or in late summer for fall flowers and an early start the next year. You can start seeds indoors 8 to 12 weeks before your last frost, or direct-sow once the soil can be worked. In cold regions like the Midwest and Northeast they often overwinter and bloom again; in the South, treat them as a fall-through-spring flower, since they slow down in real summer heat.

Like their pansy cousins, Johnny Jump-Up seeds need darkness to germinate, so cover them rather than surface-sowing. Sow about an eighth of an inch deep in moist seed-starting mix, keep the tray dark and cool at 65 to 70F, and seedlings usually appear in 10 to 20 days. A two-week chill in the fridge before sowing can speed things up. Move sprouts into bright light to keep them compact, then plant out 4 to 6 inches apart in well-drained soil in full sun to part shade.

These are among the easiest flowers you can grow. Keep the soil evenly moist, feed lightly now and then, and deadhead if you want more blooms and less self-seeding. They rarely have pest trouble. The one thing to know is that they are enthusiastic self-sowers, so a single planting often turns into a cheerful, drifting colony that returns on its own year after year, popping up between pavers and along bed edges.

Johnny Jump-Ups play well with other cool-season flowers and pollinator plants. These heirloom, non-GMO companions pair nicely with them:

Johnny Jump-Up flowers are edible and perfect for garnishing, so pick them freely. Snip fully open blooms in the cool of the morning and use them the same day scattered over salads, cakes, and drinks, or freeze them into ice cubes for a party. They also press and candy beautifully. Regular picking, like deadheading, keeps the plant blooming.

Johnny Jump-Ups are made for edging paths, tucking between stepping stones, and spilling out of pots and window boxes, where their tiny tricolor faces read as a cheerful carpet. The flowers are edible with a mild flavor and make a lovely garnish for salads, desserts, and drinks, or candied for cakes. They also draw early bees and are a classic cottage-garden self-sower that naturalizes with almost no effort.

• Poor germination: the usual cause is leaving the seed uncovered. Sow an eighth of an inch deep in the dark and keep it cool and moist.
• Slows in heat: like pansies, they pause in summer. Give them afternoon shade and steady water, or grow them as a fall and spring flower in warm climates.
• Volunteers everywhere: deadhead before seed set if you want fewer, or embrace the naturalized look.
• Aphids: rinse them off with water and encourage ladybugs with nearby flowers.
• Leggy seedlings: give sprouts bright, cool light right after germination so they stay stocky.