Yellow Crookneck Squash
Cucurbita pepo 'Crookneck'
vegetableThe classic American summer squash — bright yellow with a characteristic curved neck and bumpy skin. Harvest young at 6 to 8 inches for tender, sweet flesh. One of the most productive plants in any vegetable garden; a few plants will feed an entire family through summer.
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Sun
full sun
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Water
Every 3 days
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Harvest
~50 days
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Difficulty
easy
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Lifecycle
annual
One season, then done
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Spacing
24-36 in
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Planting Depth
1 in
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Soil pH
6.0-7.0
Growing Details
Soil Type
Rich, well-draining
Hardiness Zones
Zones 3 – 10
Grown as an annual — this range is its winter hardiness, but you can grow it for a single season in any zone.
When to Fertilize
At planting with compost; side-dress with nitrogen-balanced fertilizer when plants start vining
Fertilizer
Balanced 10-10-10 or compost; avoid high nitrogen which causes excessive leaf growth
🌱 Growing Guide
Direct sow after last frost when soil is above 65 F, or transplant 3-week-old starts. Space generously because plants are large and bushy. Hand-pollinate in the morning if fruit sets poorly, using a small brush to transfer pollen from male to female flowers. Pick every 2 to 3 days — fruits left past 10 inches become seedy and less palatable and slow future production.
Planting Calendar
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Start seeds indoors
Mar 25
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Transplant outdoors
Apr 29
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Projected first harvest
Jun 18
JJan
FFeb
MMar
AApr
MMay
JJun
JJul
AAug
SSep
OOct
NNov
DDec
✅ Plant alongside
Good neighbors that attract beneficial insects or deter pests
- Corn — Three Sisters planting: corn provides shade, squash suppresses weeds
- Beans — Fixes nitrogen; three sisters partner
- Nasturtium — Aphid trap crop; deters squash bugs
- Marigold — Deters squash bugs and beetles
❌ Keep away from
Potato
🛡️ Pest & disease prevention
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
Row cover until flowering; wrap stem base in aluminum foil early in season; Bt injection into stem
Handpick adults and egg masses on leaf undersides; eliminate plant debris; diatomaceous earth
Kaolin clay spray; row cover; beneficial nematodes in soil
Increase spacing; neem oil or potassium bicarbonate spray at first sign
🌾 Harvest & storage
Best at 6 to 8 inches with smooth, glossy skin. Skin should be tender enough to nick with a fingernail. Older fruits have tougher skin and larger seeds. Pick daily in peak season and share with neighbors — production can be overwhelming. Store at room temperature for 2 to 3 days.
🥗 Nutrition & benefits
Low in calories, good source of vitamin C, B6, and potassium. Yellow skin provides lutein and zeaxanthin antioxidants that support eye health.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.