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Yellow Crookneck Summer Squash

Cucurbita pepo var. torticollia

A prolific summer favorite that embodies the abundance of warm-weather gardening with its curved neck and bumpy, golden skin. This fast-growing bush variety produces tender, mild-flavored squash continuously throughout the season when harvested young. Its distinctive shape and reliable production have made it a garden staple for generations.

Harvest

50-65d

Days to harvest

📅

Sun

White-Tailed Deer

☀️

Zones

3–11

USDA hardiness

🗺️

Height

1-3 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 Yellow Crookneck Summer Squash in USDA Zone 7

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Zone Map

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Yellow Crookneck Summer Squash · Zones 3–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

Spacing36-48 inches between plants

SoilWell-drained, fertile soil with plenty of organic matter

pH6.0-7.5

Water1-2 inches per week, consistent moisture

SeasonWarm season

FlavorMild, slightly sweet, and tender when young

ColorBright yellow with bumpy skin

Size6-8 inches long when harvested young

Zone-by-Zone Planting Calendar

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

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: 1 ft. 0 in. - 3 ft. 0 in.. Spread: 2 ft. 0 in. - 25 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Rapid. Maintenance: var. CylindricaZucchini Squash, var. Cylindrica. 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– some have edible flesh and some are too hard or insipid to eat, though the seeds of all are edible. Has a harder, thicker stem compared to other species.

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

Garden value: Edible, Showy

Harvest time: Fall

Bloom time: Summer

Storage & Preservation

Fresh yellow crookneck squash keeps best stored unwashed in the refrigerator crisper drawer for 4-7 days. For counter storage, use within 2-3 days and keep in a cool, dry location away from direct sunlight. Don't wash until ready to use as moisture accelerates spoilage.

For longer preservation, slice into 1/2-inch rounds, blanch in boiling water for 2-3 minutes, shock in ice water, drain thoroughly, and freeze in single layers on baking sheets before transferring to freezer bags. Frozen squash keeps 8-10 months and works well in cooked dishes.

Grated yellow crookneck also freezes beautifully for quick addition to muffins, breads, and casseroles. For canning, follow USDA-approved recipes for summer squash pickles or pressure-can cubed squash. Dehydrating thinly sliced rounds at 125°F creates crispy chips that store in airtight containers for several months.

History & Origin

Origin: North America

Advantages

+Fast-growing

Companion Plants

Plant Together

Nasturtiums

Repels squash bugs, cucumber beetles, and aphids while attracting beneficial predatory insects

Marigolds

Deters squash bugs, cucumber beetles, and nematodes with natural compounds

Radishes

Repels squash vine borers and cucumber beetles, acts as trap crop

Corn

Provides natural trellis support and shade, part of traditional Three Sisters planting

Beans

Fixes nitrogen in soil and completes Three Sisters companion system

Catnip

Strong repellent for squash bugs, cucumber beetles, and other common squash pests

Dill

Attracts beneficial insects like parasitic wasps that control squash pests

Sunflowers

Attracts pollinators essential for squash fruit production and provides beneficial shade

Keep Apart

Potatoes

Compete for similar nutrients and space, may harbor similar soil-borne diseases

Aromatic herbs (mint, sage)

Strong essential oils can inhibit squash growth and development

Brassicas (broccoli, cabbage)

Heavy nitrogen feeders that compete directly with squash for nutrients

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

Moderate resistance, susceptible to powdery mildew and mosaic viruses

Common Pests

Squash bugs, cucumber beetles, squash vine borers, aphids

Diseases

Powdery mildew, downy mildew, bacterial wilt, mosaic virus

Frequently Asked Questions

How long does yellow crookneck summer squash take to grow?▼

Yellow crookneck summer squash typically takes 50-65 days from seed to first harvest. You'll see male flowers around day 35-40, followed by female flowers and small fruits within a week. The first harvestable squash usually appears 50-55 days after planting, with peak production continuing for 8-10 weeks when fruits are picked regularly every 2-3 days.

Can you grow yellow crookneck squash in containers?▼

Yes, but choose containers at least 20-24 inches wide and deep with excellent drainage. Use high-quality potting mix enriched with compost and expect slightly lower yields than garden-grown plants. Container plants need more frequent watering and feeding. Place containers in full sun and provide saucers to catch drainage while preventing waterlogged roots.

What does yellow crookneck summer squash taste like?▼

Young yellow crookneck squash has a mild, slightly sweet flavor with tender, creamy flesh and edible skin. The texture is similar to zucchini but slightly firmer. When harvested at 4-6 inches long, the flesh is delicate and absorbs flavors well, making it excellent for sautéing, grilling, or adding to baked goods. Older fruits become tougher and more bland.

When should I plant yellow crookneck summer squash?▼

Plant yellow crookneck squash 2-3 weeks after your last frost date when soil temperature reaches 65°F consistently. In most areas, this means late May through early June. For continuous harvests, make successive plantings every 2-3 weeks until 10-12 weeks before first expected fall frost. In hot climates, pause summer plantings and resume in late summer for fall crops.

Is yellow crookneck squash good for beginners?▼

Absolutely! Yellow crookneck is excellent for beginning gardeners because it germinates quickly, grows fast, and produces abundantly with minimal care. It's forgiving of minor watering inconsistencies and provides quick satisfaction with harvestable fruits in just 7-8 weeks. The main requirement is regular harvesting to keep plants productive, making it perfect for teaching garden maintenance habits.

Why are my yellow crookneck squash plants not producing fruit?▼

Most commonly, plants produce only male flowers initially – this is normal. Female flowers (with tiny squash behind them) appear 5-7 days later. Poor pollination, excessive nitrogen fertilizer, extreme heat, or inconsistent watering can also reduce fruit set. Ensure pollinators are present or hand-pollinate using a small brush to transfer pollen from male to female flowers in early morning.