Yellow Crookneck Squash Early Summer
Yellow Crookneck Squash Early Summer is a hybrid squash. Germination takes 7-10 days and fruit ripens from about day 50-60. Skin runs to bright yellow with light yellow flesh. Water need is 1-1.5 inches per week, consistent moisture. Suits zones 3-11. It will crop in a container. As a hybrid it will not breed true; saving seed from it is not worth the space.

Sowing
Direct sow after soil reaches 65°F, planting seeds 1 inch deep. Can succession plant every 2 weeks for continuous harvest.
Cultivation
- Sun
- Full sun (6+ hours)
- Water
- 1-1.5 inches per week, consistent moisture
- Soil
- Rich, well-drained soil with high organic matter
- Soil pH
- 6.0-7.0
- Spacing
- 36-48 inches
- Height
- 1-3 feet
- Season
- Warm season
Appearance & flavour
- Colour
- Bright yellow with light yellow flesh
- Size
- 6-8 inches long when harvested young
- Shape
- Curved neck with bulbous end and bumpy, warted skin
- Flavour
- Rich, buttery, and sweet with tender, creamy texture
In the kitchen
Sautéing, grilling, frying, casseroles, summer vegetable medleys, and fresh eating when young and tender
Pests, disease & resistance
- Pests
- Squash bugs, cucumber beetles, squash vine borers
- Diseases
- Powdery mildew, bacterial wilt, downy mildew
- Resistance
- Good resistance to mosaic viruses and moderate powdery mildew resistance
Planting calendar by USDA zone
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 1 | — | — | July – August | September – August |
| 2 | — | — | June – August | September |
| 3 | — | — | June – July | August – October |
| 4 | — | — | June – July | August – October |
| 5 | — | — | May – June | August – September |
| 6 | — | — | May – June | July – September |
| 7 | — | — | April – June | July – August |
| 8 | — | — | April – May | June – August |
| 9 | — | — | March – April | May – July |
| 10 | — | — | February – April | May – June |
| 11 | — | — | January – March | April – May |
| 12 | — | — | January – March | April – May |
| 13 | — | — | January – March | April – May |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
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
Where to buy seed and equipment
Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.
Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
Grown Yellow Crookneck Squash Early Summer?
Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.
Similar varieties
Other squash with a comparable time to harvest, so a season that suits Yellow Crookneck Squash Early Summer suits these too.
- Jambalaya 2.0 50 days
- Zucchini Grey 50 days
- Straightneck Yellow Summer Squash 50 days
- Green Zucchini (Black Beauty type) 50 days
- Benning's Green Tint Pattypan 50 days
- Zucchini Costata Romanesco 50 days