Home › Butternut Squash › Grow in Hawaii
Can You Grow Butternut Squash in Hawaii?
US · USDA Zone 12b · zones 9b, 10a, 10b, 11a, 11b, 12a, 12b
Butternut needs a long warm season to mature and harden its skin — too short a season and fruits won't store well.
Plant zones
Hawaii last frost
Hawaii first frost
Days to harvest
When to plant Butternut Squashes in Hawaii
Start indoors
Transplant
Harvest
Dates are approximate, based on Hawaii's average frost dates. Your exact yard may vary by microclimate.
About Butternut Squash
Butternut squash is the most popular winter squash — sweet, smooth, and superb for storage. A vigorous vining plant that needs warm weather and room to sprawl.
Direct sow after last frost or start indoors 3-4 weeks earlier. Harvest when skin turns tan and hard. Cure 1-2 weeks in a warm spot before storing in a cool dry place.
Gardening in Hawaii
Hawaii is tropical with year-round warmth. Zone varies dramatically by elevation — coastal areas are Zone 11-12 while Mauna Kea slopes reach Zone 9. Year-round growing throughout.
Frequently asked questions
Can you grow Butternut Squash in Hawaii?
Butternut needs a long warm season to mature and harden its skin — too short a season and fruits won't store well.
What zone is Hawaii?
Hawaii spans USDA Zone 12b (9b, 10a, 10b, 11a, 11b, 12a, 12b).
When do you plant Butternut Squashes in Hawaii?
Plant Butternut Squashes around no frost (start indoors Jan 1), harvest Apr 11 – May 1.