Botanical Name: Delphinium grandiflorum
Hardiness: Perennial in USDA zones 3-7
Plant Dimensions: 12″–16″ tall
Variety Information: 1″ single, cup-shaped flowers are marine blue, light blue, soft rose, and white, on multiple stems.
Exposure: Full sun to part shade
Bloom Period: Late spring to summer
Attributes: Attracts Pollinators, Cut Flower, Deer Resistant, Good for Containers
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and in Mild Climates, as late as 2 months before your average first frost date.
When to Start Inside: 6 to 8 weeks before your average last frost date.
Days to Emerge: 12– 18 days
Seed Depth: ¼”
Seed Spacing: A group of 3 seeds every 10″ – 12″
Thinning: When 3″ tall, thin to 1 every 10″ – 12″