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.
Is it still worth sowing this year?
Every region this site covers (Texas, North Florida, Central Maryland, New York City and York County, PA) publishes a winter squash planting window, so the answer for this variety is already dated. No other region is covered yet.
- Check Waltham Butternut Squash against the Texas first frost date AgriLife lists winter squash for Texas (AgriLife Region III); the page measures that window against this variety's 95 days to maturity and the region's first frost date.
- Is it too late to sow Waltham Butternut Squash in North Florida this year? UF/IFAS lists winter squash for North Florida; the page measures that window against this variety's 95 days to maturity and the region's first frost date.
- Check Waltham Butternut Squash against the Central Maryland first frost date UMD Extension lists winter squash for Central Maryland; the page measures that window against this variety's 95 days to maturity and the region's first frost date.
- Is it too late to sow Waltham Butternut Squash in New York City this year? Cornell CCE lists winter squash for the New York City area; the page measures that window against this variety's 95 days to maturity and the region's first frost date.
- Check Waltham Butternut Squash against the York County, PA first frost date Penn State Extension lists winter squash for York County, Pennsylvania; the page measures that window against this variety's 95 days to maturity and the region's first frost date.
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