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Butternut Squash

Cucurbita moschata

Vegetable

Butternut squash is a prolific winter squash with sweet, orange flesh that stores well through winter. It forms a key part of the Three Sisters polyculture, its large leaves shading the soil to suppress weeds and retain moisture.

Growing Conditions

Sunlight

Full Sun

Water Needs

Moderate

Soil

Rich, well-draining loam; pH 6.0–6.8

Spacing

24–36 inches

Days to Maturity

80–100 days from direct sow

Growing Zones

1
2
3
4
5
6
7
8
9
10
11
12
13

Thrives in USDA Zones 3–11

Companion Planting

Good Companions

Keep Away From

When to Plant

  • Start Indoors

    3–4 weeks before last frost

  • Direct Sow

    1–2 weeks after last frost, soil 60°F+

  • Harvest

    80–100 days; harvest before first frost

Organic Growing Tips

  • Plant borage nearby to repel squash bugs and attract bees for better pollination.

  • Check the base of stems weekly for vine borer eggs and crush them on sight.

  • Grow nasturtiums at the edges of your squash patch to act as a sacrificial trap crop for aphids.

  • Cure harvested squash in a warm, dry space for 10–14 days to harden the skin for long storage.

Common Pests

  • Squash Vine Borer
  • Squash Bug
  • Cucumber Beetle
  • Powdery Mildew

All pest management in Garden uses safe, organic, non-toxic methods only. No synthetic pesticides, ever.