Type
yellow straightneck hybrid
Summer Squash variety
Yellowfin Summer Squash
An early hybrid with strong productivity and useful disease resistance. Fruit is smooth, bright yellow, and easy to harvest.
Days to maturity
40 to 45
Best for
early high yields, fresh use
About Yellowfin
Yellowfin is a hybrid golden zucchini-type summer squash with straight, cylindrical fruit and glossy, bright yellow skin. It is valued for uniform fruit, an open plant habit that keeps squash visible and easy to pick, and reliably heavy yields. The flesh is firm and mild, suiting it to both fresh use and cooking.
Growing Yellowfin Summer Squash
Grow in full sun and warm, well-drained soil, spacing plants about 2 to 3 feet apart. Harvest young at roughly 6 to 8 inches for tender fruit, and pick frequently to keep production going. Scout for squash bugs, vine borers, and powdery mildew as the season progresses.
Full growing guide
For planting dates, care, and harvest that apply to all summer squash, see the complete guide.
How to grow Summer SquashOther summer squash varieties
Variety characteristics are general guidance for US home gardens; performance varies by climate, soil, and season. Seed and plant availability differs by supplier. Page updated Aug 4, 2026.