Viola, “Johnny-Jump-Up” Seeds
Nothing is as charming as a patch of Johnny-Jump-Ups poking their heads above the snow. Although violas are perennial, they are often grown like annuals because they do not perform well in an extended period of heat. USDA zones 4-8 can reliably plant violas as perennials. Other areas may want to use them as cool-season annuals. Violas will return in all zones by reseeding. Edible flowers are charming on salads and desserts.
When to Sow Outside: RECOMMENDED. Cold Climates: 4 to 6 weeks before your average last frost date, or in midsummer for fall and the following spring bloom. Mild Climates: Late summer for cool–season bloom.
When to Start Inside: 8 to 10 weeks before your average last frost date for early spring planting, and midsummer for fall planting in both mild and cold climates.
Days to Emerge: 7–20 days
Seed Depth: ⅛"
Seed Spacing: A group of 3 seeds every 4"–6"
Thinning: When ½"–1" tall, thin to 1 every 4"–6"