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Rated 4.8 out of 5 stars
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Waltham Butternut Winter Squash Seeds

Waltham Butternut Winter Squash Seeds

Regular price $4.49
~2.0 g (~18 seeds)
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Type: Organic

Product Details

Winter squash gives you the perfect reason to look forward to winter! The rich, sweet flavor of butternut quickly became a classic and has set a high bar. Roast, bake, or purée into a soup for classic winter fare. 4 to 5 fruits per plant; solid stems resist squash vine borers. Stores for months! 1970 All-America selections winner.

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  • Variety Info
  • Sowing Info
  • Growing Info

Variety Info

Days to Maturity: 100 days

Family: Cucurbitaceae

Type: Butternut Squash, Winter Squash (Learn more)

Native: Northern Columbia

Hardiness: Frost-sensitive annual

Exposure: Full sun

Plant Dimensions: 8' vines

Variety Info: 8"–12" long, 3–6 pounds, light tan skin with yellowish-orange flesh.

Attributes: Squash Vine Borer Resistant, Frost Sensitive

Sowing Info

When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is 70°–85°F.

When to Start Inside: Not recommended except in very short growing seasons, 2 to 4 weeks before your average last frost date. Roots sensitive to disturbance; sow in 4" biodegradable pots that can be planted directly into the ground. Transplant when soil temperature is at least 60°F.

Days to Emerge: 5–10 days

Seed Depth: ½–1"

Seed Spacing: 2–3 seeds per mound

Row Spacing: 6'–8'

Thinning: When 3" leaves, thin to 1–2 per mound

Growing Info

Harvesting: Harvest when the squash's rind is hard enough that you can't dent it with your fingernail and before first frost. Cut stem, (don't break it off) leaving 2" of stem attached, which keeps the squash whole, leaving no opening for infection. Though fruits are hard and may seem indestructible, treat them gently; bruising can spoil squash.

4.8
Rated 4.8 out of 5 stars
Based on 9 reviews
Total 5 star reviews: 7 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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9 reviews
  • Bridget S.
    Rated 5 out of 5 stars
    Nov 24, 2023
    5 Stars

    I planted 3 squash seeds. They went crazy, over the trellis, over the 6' garden fence, and well into the yard. I ended up harvesting 54 squash. :)

  • Banks B.
    Rated 5 out of 5 stars
    Nov 2, 2023
    5 Stars

    I’ve never been good at growing squash. I’ve tried over the past two years, and I haven’t been ever able to successfully even get a flower on my squash.This year was different though, when I tried to grow the butternut squash, it actually worked really well and a squash is developing on my plant.

  • Charlene D.
    TN, United States
    Verified Buyer
    Rated 4 out of 5 stars
    Nov 15, 2025
    My favorite winter squash

    Was a very good germination rate and a great harvest this year can't wait to grow them next year

    Which best describes you as a gardener? Beginner
    Who do you grow for? Yourself
    How do you prefer to grow? In Ground
  • Philip L.
    Verified Buyer
    Rated 5 out of 5 stars
    Feb 24, 2025
    5 Stars

    Great seeds.

  • Erik P.
    Verified Buyer
    Rated 4 out of 5 stars
    Oct 5, 2024
    4 Stars

    All seeds germinate with vigor except of course shiso, which I always have trouble with.

    Which best describes you as a gardener? Intermediate
Waltham Butternut Winter Squash Seeds

Waltham Butternut Winter Squash Seeds