Botanical Interests
Mammoth Navy Blue Sweet Pea Seeds
Mammoth Navy Blue Sweet Pea Seeds
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Product Details
Product Details
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.
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- Variety Info
- Sowing Info
Variety Info
Family: Fabaceae
Native: Italy
Hardiness: Frost-tolerant annual
Exposure: Full Sun to Part Shade
Bloom Period: Spring to Summer
Plant Dimensions: 5’–6' vines
Variety Info: 1"–2" dark purple-blue flowers
Sowing Info
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"
- Sandra M.Verified BuyerRated 1 out of 5 starsSep 20, 2025Never flower
I have tried planting these for 2 years now and I never get them to flower. Any suggestions? I plant them as per directions on the packet.
Which best describes you as a gardener? BeginnerEGEpic GardeningSep 29, 2025Hey Sandra,
Thank you so much for taking the time to share your thoughts in a review. I've reached out to you via email to offer assistance. Your feedback is invaluable to us, and we are committed to ensuring your experience is positive. Thank you once again for your input. Keep on growing 🌻️
