Heirloom

Red Kuri Squash

Cucurbita maxima 'Red Kuri'

A beautiful Japanese winter squash with brilliant orange-red skin and incredibly sweet, creamy flesh that tastes like roasted chestnuts. This teardrop-shaped beauty is perfect for those who want to try something exotic yet easy to grow, producing 3-7 pound fruits that store exceptionally well. The thin, edible skin and dense, fiber-free flesh make it a chef's favorite for soups, roasting, and gourmet preparations.

Harvest

95-105d

Days to harvest

📅

Sun

koo-KER-bih-ta MAKS-ih-muh

☀️

Zones

3–11

USDA hardiness

🗺️

Difficulty

Moderate

🌱

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct Sow

Harvest

Direct Sow

Harvest

Showing dates for Red Kuri Squash in USDA Zone 7

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Zone Map

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Red Kuri Squash · Zones 3–11

What grows well in Zone 7? →

Growing Details

Difficulty

Moderate

Spacing48-60 inches

SoilRich, well-drained soil with plenty of compost

pH6.0-7.0

Water1-1.5 inches per week, deep watering

SeasonWarm season

FlavorVery sweet, nutty, chestnut-like flavor with creamy, dense texture

ColorBrilliant orange-red to coral

Size6-8 inches diameter, 3-7 lbs

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 – October
Zone 7	—	—	April – June	August – October
Zone 8	—	—	April – May	August – September
Zone 9	—	—	March – April	July – August
Zone 10	—	—	February – April	June – August

Complete Growing Guide

Light: koo-KER-bih-ta MAKS-ih-muh. Soil: High Organic Matter, Loam (Silt). Soil pH: Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Spacing: 12 inches-3 feet. Growth rate: Rapid. Maintenance: Medium. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

Soft or hard-shelled berries called pepos come in a variety of colors, shapes, and sizes and are harvested in the fall. The stems of the fruits generally have a soft corky texture compared to other species.

Color: Blue, Cream/Tan, Gold/Yellow, Gray/Silver, Orange, Pink, Red/Burgundy, Variegated, White. Type: Berry. Length: > 3 inches. Width: > 3 inches.

Garden value: Edible, Long-lasting, Showy

Harvest time: Fall

Bloom time: Summer

Storage & Preservation

Cure harvested Red Kuri squash in a warm, dry location (80-85°F) for 10-14 days to harden the skin and heal minor cuts. After curing, store in a cool, dry place (50-55°F) with good air circulation—a basement, garage, or pantry works well. Properly cured fruits can last 5-8 months in storage.

Check stored squash monthly and remove any showing soft spots immediately to prevent spreading. Don't store in plastic bags or refrigerate whole fruits, as this causes rapid deterioration.

For preservation, cut squash can be frozen after cooking—roast chunks until tender, then freeze in portions. The creamy flesh also makes excellent puree that freezes beautifully for soups and baking. Dehydrate thin slices at 135°F for chewy snacks, or pressure can cubed squash following tested recipes for shelf-stable storage.

History & Origin

Origin: Central and South America

Advantages

+Fast-growing

Companion Plants

Plant Together

Corn

Provides natural trellis structure and wind protection for sprawling squash vines

Beans

Fix nitrogen in soil which benefits heavy-feeding squash plants

Marigolds

Repel cucumber beetles, squash bugs, and other common squash pests

Nasturtiums

Act as trap crop for squash bugs and cucumber beetles while repelling aphids

Radishes

Deter squash vine borers and cucumber beetles when planted around squash

Catnip

Strong pest deterrent against squash bugs, cucumber beetles, and aphids

Oregano

Repels various garden pests and may improve squash flavor and growth

Sunflowers

Provide beneficial habitat for predatory insects that control squash pests

Keep Apart

Potatoes

Compete for similar nutrients and space, both are heavy feeders

Brassicas

Heavy nitrogen feeders that compete with squash and may stunt growth

Melons

Share similar diseases and pests, increasing risk of crop failure

Nutrition Facts

Calories

26kcal(1%)

Protein

0.52g(1%)

Carbs

5.64g(2%)

Fat

0.2g(0%)

Vitamin C

4.5mg(5%)

Iron

0.17mg(1%)

Calcium

9mg(1%)

Potassium

205mg(4%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #168040)

Pests & Disease Resistance

Resistance

Good disease resistance and excellent storage life

Common Pests

Squash bugs, cucumber beetles, vine borers

Diseases

Powdery mildew, downy mildew, bacterial wilt

Frequently Asked Questions

How long does Red Kuri squash take to grow?▼

Red Kuri squash takes 95-105 days from planting to harvest. In shorter growing seasons (zones 3-6), start seeds indoors 3-4 weeks before the last frost to ensure adequate growing time. The long season is necessary for developing the variety's signature sweet, nutty flavor and dense flesh texture.

Can you grow Red Kuri squash in containers?▼

Red Kuri squash is not suitable for container growing due to its extensive vine system that spreads 8-12 feet. The plants are heavy feeders requiring large root systems, and each plant needs approximately 50 square feet of space. Consider compact bush varieties like Table Queen acorn squash for container growing instead.

What does Red Kuri squash taste like?▼

Red Kuri squash has an incredibly sweet, nutty flavor that closely resembles roasted chestnuts, which is why 'Kuri' means chestnut in Japanese. The flesh is dense, creamy, and fiber-free with no stringiness. When roasted, it develops a rich, almost custard-like texture that's naturally sweet enough for desserts.

Is Red Kuri squash good for beginners?▼

Red Kuri squash is moderately challenging for beginners due to its long growing season, large space requirements, and susceptibility to vine borers. However, it's more forgiving than delicate varieties and has good disease resistance. New gardeners with adequate space and a 100+ day growing season can succeed with proper soil preparation and consistent care.

When should I plant Red Kuri squash seeds?▼

Plant Red Kuri squash seeds indoors 3-4 weeks before your last frost date, or direct sow outdoors when soil temperature reaches 65°F consistently. In most areas, this means starting indoor seeds in mid to late April and transplanting in mid to late May. Never plant when cold weather is still possible.

Red Kuri vs butternut squash - what's the difference?▼

Red Kuri has sweeter, nuttier flavor compared to butternut's mild taste, plus edible thin skin versus butternut's tough skin requiring peeling. Red Kuri stores longer (5-8 months vs 3-6 months) and has denser, creamier flesh. However, butternut has higher yields and takes less garden space, making it more practical for many gardeners.