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Squash · Cucurbita maxima

Blue Hubbard Squash

Blue Hubbard Squash is a large, teardrop-shaped with bumpy, warted skin squash with fruit around 12-15 lb. Ready from roughly day 100. Germination takes 7-14 days. Space 8-10 feet apart at pH 6.0-7.0. Full sun (6+ hours).

Squash
100days to harvest
7-14days to germinate
Z3–11USDA zones
Moderatedifficulty
Heirloom

Sowing

Direct sow after soil reaches 65°F and danger of frost has passed. Plant in hills or mounds.

Cultivation

Sun
Full sun (6+ hours)
Water
1-2 inches per week, reduce watering as fruits mature
Soil
Rich, well-drained soil with high organic matter content
Soil pH
6.0-7.0
Spacing
8-10 feet
Season
Warm season annual

Appearance & flavour

Colour
Blue-gray exterior with bright orange flesh
Size
12-15 lb.
Shape
Large, teardrop-shaped with bumpy, warted skin
Flavour
Sweet, fine-textured, rich and creamy when cooked

In the kitchen

Excellent for pies, soups, roasting, baking, and long-term storage

Pests, disease & resistance

Pests
Squash bugs, cucumber beetles, squash vine borers
Diseases
Powdery mildew, downy mildew, bacterial wilt
Resistance
Good general disease resistance typical of Hubbard types

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
2——June – AugustOctober – September
3——June – JulyOctober
4——June – JulyOctober
5——May – JuneOctober
6——May – JuneSeptember – November
7——April – JuneSeptember – October
8——April – MayAugust – October
9——March – AprilJuly – September
10——February – AprilJuly – August
11——January – MarchMay – July
12——January – MarchMay – July
13——January – MarchMay – July

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

NasturtiumsTrap crop for squash bugs and cucumber beetles, repels aphids
MarigoldsRepel cucumber beetles, squash bugs, and nematodes
RadishesDeter squash vine borers and cucumber beetles when planted around squash hills
CornProvides vertical structure and shade, part of traditional Three Sisters planting
BeansFix nitrogen in soil, complete the Three Sisters guild with corn and squash
CatnipStrong repellent for squash bugs, cucumber beetles, and other squash pests
DillAttracts beneficial insects like parasitic wasps that control squash pests
SunflowersAttract pollinators and beneficial insects, provide wind protection

Avoid

PotatoesCompete for space and nutrients, may inhibit squash growth
Aromatic herbs (strong)Plants like sage and rosemary can inhibit squash growth through allelopathy
BrassicasHeavy feeders that compete for nutrients, may stunt squash development

Nutrition (per 100 g)

Calories (per 100 g)
26
Protein (g)
0.52
Fat (g)
0.2
Carbohydrate (g)
5.64
Sugars (g)
3.54
Vitamin C (mg)
4.5
Vitamin E (mg)
0
Vitamin B6 (mg)
0.058
Folate (µg)
22
Calcium (mg)
9
Iron (mg)
0.17
Magnesium (mg)
10
Phosphorus (mg)
12
Potassium (mg)
205
Zinc (mg)
0.07
← PreviousGreen Zucchini (Black Beauty type) Next →Golden Acorn Squash

Where to buy seed and equipment

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Growing it? There is a full cultivation guide at the squash growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

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Similar varieties

Other squash with a comparable time to harvest, so a season that suits Blue Hubbard Squash suits these too.

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