Botanical Name: Lupinus perennis
Native: Eastern North America and eastern Canada
Hardiness: Perennial in USDA zones 3–8
Plant Dimensions: 24"–36" tall, 18" wide
Variety Information: ¾" blue to purple-blue flowers massed at the top of tall spikes
Exposure: Full sun
Bloom Period: Spring
Attributes: Attracts Polliantors, Drought Tolerant
When to Sow Outside: RECOMMENDED. Mild Climates: Sept. or Oct. Cold Climates: 4 to 6 weeks before your average last frost date, or as soon as soil can be worked in spring or late summer/fall. Ideal soil temperature for germination is 75°–85°F.
When to Start Inside: 6 to 8 weeks before your average last frost date. Start in biodegradable pots that can be planted directly into the ground without disturbing roots.
Days to Emerge: 14–28 days (or longer)
Seed Depth: ⅛"
Seed Spacing: 4"
Thinning: When 2" tall, thin to 12" apart