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When to Plant Butternut Squash in Massachusetts

State

Massachusetts

Cities Covered

27

USDA Zones

6a, 6b, 7a

Plant Type

Indoor Start

📅 Planting Calendar for Massachusetts

Based on Boston (Zone 7a). Dates may vary by city.

Start Seeds Indoors Friday, March 13, 2026
Transplant Outdoors Friday, April 24, 2026

Note: Massachusetts spans multiple zones (6a, 6b, 7a). Select your city below for more precise dates.

🌿 Plant Details

Scientific Name Cucurbita moschata
Days to Maturity 100 days
Sun Requirements Full Sun

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Growing Butternut Squash in Massachusetts

Butternut Squash (Cucurbita moschata) is a popular garden vegetable in Massachusetts. The state spans USDA Hardiness Zones 6a, 6b, 7a, so planting dates can vary significantly depending on your location.

For most of Massachusetts, you should start Butternut Squash seeds indoors around Friday, March 13, 2026, then transplant outdoors around Friday, April 24, 2026.

For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.