Vegetable / Warm season
Waltham Butternut Squash
Long-season storage crop for gardens with real square footage.
Sweet orange flesh for roasting and soups.
Seed spacing and maturity
- Days to maturity
- 95
- Germination temperature
- 70-95F
- Seed depth
- 1 inches
- Spacing
- 36 inches
- Row spacing
- 72 inches
- Start method
- Either
Frost-date timing
- Indoor start
- 3 weeks before last frost
- Direct sow
- 14 days after last frost
- Transplant
- 14 days after last frost
Action plan
- Can I plant this now?
- Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
- Start indoors or direct sow?
- Direct sow or transplant depending on your soil warmth, bed readiness, and frost-risk plan.
- How much space?
- 36 inches in-row spacing, 72 inches between rows, and 1 inch seed depth.
- Best companions?
- Use this as part of a diverse flowering or herb planting, and treat companion claims as site-specific rather than guaranteed pest control.
- Common failure modes?
- Short-season climates need transplants and a realistic frost window. Deep weekly water; reduce late when fruit cures. Rich soil, large root zone, and warm temperatures.
Growing profile
- Sun
- Full sun
- Water
- Deep weekly water; reduce late when fruit cures.
- Soil
- Rich soil, large root zone, and warm temperatures.
- Watch
- Short-season climates need transplants and a realistic frost window.
- storage
- long-season
- pollinators
- vining
Browse context
- Vegetable Catalog Category collection
- Cucurbit Family Rotation and family context
- Warm Season Seeds Season collection
- Either Seeds Start-method collection
- High Pollinator Value Seeds Practical trait collection
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Source: CSU vegetable planting guide