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Mammoth Navy Blue Sweet Pea Seeds

Mammoth Navy Blue Sweet Pea Seeds

1082

1.0
Rated 1.0 out of 5 stars
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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.

$3.49
$3.49
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~2.0 g

(~400 seeds)

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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

Non GMO Project

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"

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1.0
Rated 1.0 out of 5 stars
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1 review
  • Sandra M.
    Verified Buyer
    Rated 1 out of 5 stars
    9/20/25
    Never 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.

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    Which best describes you as a gardener? Beginner
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    Botanical Interests
    9/29/25

    Hey 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 🌻️