Warted Hubbard

Family: Cucurbitaceae Vegetable

Rich, sun-warmed flesh meets a rugged, warted exterior in Warted Hubbard—an heirloom-style winter squash with a deep, earthy sweetness and a velvety, spoonable texture once cured.

The rind is characteristically bumpy and sculptural, turning into a dependable storage skin that invites long-season anticipation. Grow it for hearty winter roasts, silky purées, and robust sauces—its dense, golden interior shines in every slow-cooked comfort pot.

Light: Full SunMaturity: 105 DaysHabit: Vine

Botanical illustration of Warted Hubbard

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	May 9th
Harvest Begins	Aug 22nd
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	105
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	80
Min Soil Temp (°F)	65
Min Night Temp (°F)	55
Harden Off (days)	10

Culinary Notes

Chef's Note

Warted Hubbard is a storage-minded squash with dense, velvety flesh—once cured, it roasts into something sweet and toast-kissed instead of watery. It purées like silk and thickens sauces naturally, so you can go dairy-light while still getting that spoonable comfort-pot texture.

Best Uses

slow-roasted halves until jammy at the edges, then scoop for a spoon roast
silky purée for pies, dumplings, or gratins that won’t thin out
thick squash sauce or ragù base where it braises down and clings
robust soups/curries where it turns creamy without adding dairy

Flavor Profile

deep earthy sweetness buttery, velvety spoonable flesh toasty roasted-nut character low-water density that holds purée structure

Kitchen Pairings

brown butter sage smoked paprika garlic maple gruyère

Frequently Asked Questions

What’s the most common pest or disease problem for Cucurbita maxima (Blue Hubbard/warted Hubbard), and how do I fix it?

Cucurbita maxima is especially prone to powdery mildew on leaves, which looks like a white dusting and can quickly reduce fruit size. Improve airflow by spacing hills at least 4–6 ft apart, avoid wetting the leaves when watering, and remove badly infected leaves early. If mildew is already spreading, treat with a labeled fungicide and repeat according to the label to protect new leaf growth.

How often should I water warted Hubbard (Cucurbita maxima) during the main growing phase?

Water deeply once or twice per week during active vine growth, keeping soil consistently moist 6–8 in down rather than lightly wetting the surface. Aim for about 1–1.5 in of water per week, adjusting for heat and soil type, and water at the base to keep foliage dry. Once fruits start setting, reduce frequency slightly to avoid waterlogged soil, but don’t let plants wilt for long periods.

How can I tell when warted Hubbard (Cucurbita maxima) is ready to harvest?

Harvest at full maturity around 105 days, when the squash rind is hard and resists puncture with a thumbnail. The stem should be dried and the fruit color should be fully developed (depending on your skin pattern) and dull rather than glossy. Cut with a short stem (about 1–2 in) and cure in a warm, dry place for about 7–10 days before storage.