Botanical Interests Mammoth Navy Blue Sweet Pea Seeds

Mammoth Navy Blue sweet peas live up to their name with striking, extra-large blooms in deep, velvety purple-blue hues atop lengthy stems—ideal for cutting gardens and floral arrangements. Developed from Early Multiflora Gigantea, this Spencer-type variety offers not only beauty but impressive heat and drought resistance, ensuring a longer season of fragrant blossoms. Perfect for trellises, fences, and garden beds, these sweet peas attract pollinators while bringing vibrant color and a delightful scent to your outdoor spaces.

When to Sow Outside: RECOMMENDED. Cold Climates: 4 to 6 weeks before your average last frost date. Mild Climates: Late fall to early winter for spring blooms. Ideal soil temperature of 55°-65°F.

When to Start Inside: 4 to 6 weeks before your average last frost date.

Days to Emerge: 10 – 21 Days

Seed Depth: 1"

Seed Spacing: A group of 3 seeds every 6"

Thinning: When 3" tall, thin to 1 every 6"