Golden Hubbard

Winter Squash

Zone 4b Save Garden

Botanical illustration of Golden Hubbard

🌱 95d to harvest Vine

Sink your senses into Golden Hubbard’s sunlit presence—its thick, warm-gold flesh promises a rich, mellow sweetness with a velvet…

Crop Dates

Milestone	Date
Start Indoors	May 27th
Last Frost	May 13th
Transplant / Sow Outdoors	Jun 10th
Harvest Begins	Sep 13th
Harvest Ends	Sep 27th

Crop Details

Trait	Value
Days to Maturity	95
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	65
Min Night Temp (°F)	55
Harden Off (days)	12

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Frequently Asked Questions

What pest or disease is most likely to hit Cucurbita maxima (Golden Hubbard), and how can I manage it?

Cucurbita maxima commonly suffers from powdery mildew, which shows up as a white, dusty coating on older leaves and quickly reduces fruit size. Improve airflow by spacing plants well and keep leaves dry, then start a preventive spray with sulfur or a potassium bicarbonate product as soon as you see early spots. Remove and discard heavily infected leaves (don’t compost them) to slow spread.

How often should I water Golden Hubbard squash during the main growing phase (after vines establish)?

During the main vine and fruit-forming period, keep soil consistently moist but not waterlogged—aim for about 1–2 inches (2.5–5 cm) of water per week, adjusted for heat and rainfall. Water deeply at the base so moisture reaches the root zone, and let the top 1 inch (2–3 cm) of soil dry slightly between waterings to prevent root stress. Reduce watering a bit once fruits reach full size to help skins cure properly.

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

Harvest at about 95 days, when the skin has turned uniformly deep golden-orange and the rind is hard enough that you can’t easily puncture it with a fingernail. The stem should be thick and starting to dry, and the fruit should have a dull, not glossy, surface. Cut from the vine with 2–3 inches of stem attached to improve storage life—avoid pulling, which can cause stem injury.

Sink your senses into Golden Hubbard’s sunlit presence—its thick, warm-gold flesh promises a rich, mellow sweetness with a velvety, spoon-tender texture once fully cured. The rind forms a sturdy, deep-sun shell that stores beautifully, making this winter squash a dependable centerpiece for hearty seasonal dishes. Grow it for its bold, golden color and comforting, autumnal flavor that shines in roasted wedges, smooth purées, and savory sauces alike.

Sowing Tips

Transplant Conditions

Wait until soil reaches 65°F and nights stay above 55°F before moving outdoors. Harden off for 12 days first.

Direct Sow Preferred

Sensitive roots — does not transplant well. If starting indoors, use biodegradable pots and disturb roots as little as possible when moving outdoors.

Expert Note

Use plenty of composted organic matter and give each vine ample space (or trellis only if trained early) to reduce powdery mildew and improve fruit size.