VegetableSquash
Hubbard White Squash
Hubbard White Squash is a classic heirloom winter squash with a striking pale, bumpy rind that conceals rich orange flesh inside. This open-pollinated Cucurbita maxima variety reaches maturity in 90 to 99 days and thrives across hardiness zones 3 through 13, making it accessible to gardeners in nearly every climate. The vigorous vining plants produce large squash that store for months, delivering both visual drama in the garden and reliable kitchen performance for roasting, soups, and pies.
Photo © True Leaf Market
Growing Conditions
USDA Zone
3-13
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam, Rich
Growth Stats
30 in
Height
TypeVining
Spacing
48
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
3-13
Size
30in H x ?in W
Growth
—
Care
High
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Highlights
The white, heavily ridged skin of this Hubbard is unmistakable in any garden or farmers market display, and it signals the dense, sweet orange flesh beneath that has made this variety a winter staple for generations. These squash are built to last, storing reliably for months with proper curing and cool storage, so a single planting feeds you well into winter. The vigorous vines demand space but reward you generously with large fruits that weigh substantially and cook down into silky puree or hearty roasted wedges.
Common Uses
Hubbard White excels as a roasting squash, where its dense flesh transforms into silky, naturally sweet puree perfect for both savory winter sides and pie filling. The thick flesh holds up beautifully in soup, absorbing flavors without collapsing into mush, and the whole fruit's impressive appearance makes it as much a decorative display piece as a culinary one. Many growers also prize it as an outstanding storage crop, harvesting in fall and drawing from their stash through winter months.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Direct Sow
Direct sow seeds into warm soil after all danger of frost has passed and soil temperature reaches at least 60 to 70 degrees Fahrenheit. Plant seeds 1 inch deep, spacing plants 48 inches apart in rows 72 inches apart. The vigorous vines will begin to run quickly once established.
Harvesting
Harvest Hubbard White squash after 90 to 99 days when the rind has hardened completely and resists puncture from a fingernail. The skin should show a pale, creamy white color with no soft spots. Cut each squash from the vine with a sharp knife or pruner, leaving 2 to 3 inches of stem attached; this stem helps prevent rot during storage. Harvest before the first hard frost to ensure optimal storage quality.
Pruning
As a vigorous vining squash, Hubbard White can be left to sprawl naturally across the garden, though you may carefully redirect wayward vines away from walkways or other plantings. Some gardeners thin the vine tip once several fruits have set, which redirects the plant's energy to developing those fruits rather than producing more flowers. Avoid aggressive pruning; these plants need healthy leaf area to support the large squash to maturity.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Edible
Scientific Classification
Cucurbita maxima
Family
Cucurbitaceae
Genus
Cucurbita
Growth Habit
Vining
Native Status
L48 (I)PR (I)
History & Origin
“Hubbard squash arrived in America from South America and quickly became embedded in New England farming traditions, where it thrived in cooler climates and earned its place as a winter staple. The white-skinned variant emerged as a distinct type, valued by seed savers and heirloom growers for its distinctive appearance and reliable storage. As an open-pollinated, non-GMO variety, Hubbard White has been preserved and passed along by home gardeners and seed companies specifically because it breeds true and maintains its character year after year.”