Heirloom

Butternut Squash

Cucurbita moschata

Larger fruits with small seed cavities and thick, straight, cylindrical necks. Flesh has smooth texture and sweet flavor, particularly after 2 months of storage. This 1970 All-America Selections Winner from Massachusetts is still deservedly the most widely grown, full-size OP butternut. Fruits avg. 9" long. AAS Winner. Avg. weight: 4-5 lb.

Harvest

105d

Days to harvest

📅

Sun

White-Tailed Deer

☀️

Zones

3–11

USDA hardiness

🗺️

Height

4-10 feet

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct Sow

Harvest

Direct Sow

Harvest

Showing dates for Butternut Squash in USDA Zone 7

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Zone Map

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Butternut Squash · Zones 3–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy to Moderate

Spacing36-48 inches between plants

SoilRich, well-drained soil with plenty of organic matter

pH6.0-6.8

Water1-1.5 inches per week, deep watering

SeasonWarm season annual

FlavorSweet, nutty, and creamy with hints of brown butter

ColorTan exterior with bright orange flesh

Size9"

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	—	—	June – July	October – October
Zone 4	—	—	June – July	October – October
Zone 5	—	—	May – June	September – October
Zone 6	—	—	May – June	September – November
Zone 7	—	—	April – June	September – October
Zone 8	—	—	April – May	August – October
Zone 9	—	—	March – April	July – September
Zone 10	—	—	February – April	July – August

Complete Growing Guide

Light: White-Tailed Deer. Soil: High Organic Matter, Loam (Silt). Soil pH: Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 4 ft. 0 in. - 10 ft. 0 in.. Spread: 3 ft. 0 in. - 25 ft. 0 in.. Spacing: 12 inches-3 feet, 3 feet-6 feet, 6-feet-12 feet. Growth rate: Rapid. Maintenance: 'Betternut 900'1 1/2 to 2lb range for fruit 'Butterfly'Compact vine 'Butterscotch'Very sweet 1 1/2 to 2lb fruits 'Honeynut'Warmer/long season climates because longer days to harvest, not best for storage eat immediately 'Metro'Very productive in less than ideal conditions, 'Betternut 900', 'Butterfly', 'Butterscotch', 'Honeynut', 'Metro'. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

A type of berry called a pepo that has a hard rind. Fruits may be long or round, large or small, smooth or warty. Comes in a variety of colors, shapes, and sizes. Fruits and seeds are both edible.

Color: Blue, Cream/Tan, Gold/Yellow, Gray/Silver, Green, Orange, Variegated. Type: Berry. Length: 'Betternut 900'1 1/2 to 2lb range for fruit 'Butterfly'Compact vine 'Butterscotch'Very sweet 1 1/2 to 2lb fruits 'Honeynut'Warmer/long season climates because longer days to harvest, not best for storage eat immediately 'Metro'Very productive in less than ideal conditions, 'Betternut 900', 'Butterfly', 'Butterscotch', 'Honeynut', 'Metro'. Width: > 3 inches.

Garden value: Edible, Long-lasting, Showy

Harvest time: Fall

Bloom time: Summer

Storage & Preservation

Cure freshly harvested butternut squash in warm, dry conditions (80-85°F) for 10-14 days to harden the skin and concentrate sugars. Store cured squash in a cool, dry location (50-55°F) with good air circulation—basements, root cellars, or unheated garages work perfectly. Properly stored butternut squash keeps 6-12 months.

Check stored squash monthly, using any showing soft spots immediately. For preservation, roast cubed flesh and freeze in portions for up to 18 months—the texture holds beautifully for soups and purees. Dehydrate thin slices into sweet, chewy snacks, or pressure-can cubes in water for shelf-stable storage. Raw butternut doesn't freeze well due to high water content, but cooked puree freezes excellently in ice cube trays for easy portioning.

History & Origin

Origin: Central and South America

Advantages

+Fast-growing

Companion Plants

Plant Together

Corn

Provides natural trellis for squash vines and creates beneficial microclimate

Beans

Fixes nitrogen in soil that squash can utilize for healthy growth

Marigolds

Repels squash bugs, cucumber beetles, and other harmful insects

Nasturtiums

Acts as trap crop for squash bugs and cucumber beetles

Radishes

Deters squash vine borers and cucumber beetles when planted nearby

Catnip

Strong scent repels squash bugs and cucumber beetles

Oregano

Repels various pests and may improve overall plant health

Sunflowers

Attracts beneficial insects and provides some shade protection

Keep Apart

Potatoes

Compete for similar nutrients and space, may harbor similar pests

Fennel

Inhibits growth of most garden plants through allelopathic compounds

Aromatic herbs (strong)

Very strong herbs like sage can inhibit squash growth when planted too close

Nutrition Facts

Calories

45kcal(2%)

Protein

1g(2%)

Fiber

2g(7%)

Carbs

11.7g(4%)

Fat

0.1g(0%)

Vitamin C

21mg(23%)

Vitamin A

532mcg(59%)

Vitamin K

1.1mcg(1%)

Iron

0.7mg(4%)

Calcium

48mg(4%)

Potassium

352mg(7%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #169295)

Pests & Disease Resistance

Resistance

Good resistance to most squash diseases when grown in proper conditions

Common Pests

Squash bugs, cucumber beetles, vine borers, aphids

Diseases

Powdery mildew, downy mildew, bacterial wilt, squash mosaic virus

Frequently Asked Questions

How long does butternut squash take to grow from seed?▼

Butternut squash requires 100-120 days from seed to harvest. In most climates, this means planting in late May or early June for October harvest. Northern gardeners should start seeds indoors 2-3 weeks early to ensure full maturity before hard frost.

Can you grow butternut squash in containers?▼

Butternut squash is challenging to grow in containers due to its extensive vining habit and large space requirements. If attempting container growing, use a minimum 40-gallon container with sturdy trellising and choose compact bush varieties like 'Burgess Buttercup' rather than traditional vining types.

When should I plant butternut squash seeds?▼

Plant butternut squash after soil consistently reaches 65°F and all frost danger has passed. This typically means late May to early June in most temperate regions. Cold soil prevents germination and leads to seed rot, so patience pays off with this warm-season crop.

How do you know when butternut squash is ready to pick?▼

Ripe butternut squash displays uniform tan-beige coloring with no green streaks, a rock-hard rind that resists fingernail pressure, and a brown, shriveling stem. The fruit should sound hollow when tapped and separate easily from the vine with gentle twisting.

Is butternut squash good for beginner gardeners?▼

Butternut squash offers moderate difficulty for beginners. While generally pest and disease resistant with straightforward growing requirements, the long growing season, large space needs, and vine borer susceptibility can challenge new gardeners. Success depends more on space availability than gardening experience.

What does homegrown butternut squash taste like compared to store-bought?▼

Homegrown butternut squash develops deeper, more complex sweet and nutty flavors with hints of brown butter, especially after proper curing and storage. The flesh tends to be denser and less watery than commercial varieties, which are often harvested early for shipping durability.