Summer Squash
Yellowfin Zucchini Squash is an F1 hybrid that brings vibrant yellow color to summer gardens while resisting two of the squash grower's most persistent headaches: powdery mildew and cucumber mosaic virus. This organic-certified variety reaches harvest maturity in just 50 days from seed, making it one of the quickest routes from planting to plate. The compact bush growth habit means it thrives in tight spaces, needing just 18 inches between plants, while the compact plant structure makes it a natural fit for containers or small garden beds. Johnny's Selected Seeds has developed this variety specifically for growers who want reliable production without constant disease management.
—
Moderate
?-?
?in H x ?in W
Annual
Moderate
Hover over chart points for details
What sets Yellowfin apart is its combination of speed, disease resistance, and space efficiency. Fifty days to harvest means succession plantings every 2-3 weeks can keep yellow squash flowing from mid-summer through fall. The powdery mildew resistance alone saves countless hours of spraying and monitoring, while the cucumber mosaic virus resistance removes another major threat to consistent production. For organic gardeners especially, this hybrid delivers the disease protection of modern breeding without sacrificing the clean growing practices they're committed to.
Yellow zucchini works beautifully in any recipe calling for traditional green zucchini, sliced and sautéed, grilled with olive oil and garlic, grated into baked goods, or spiralized into noodles. The bright color makes it especially striking in fresh salads or as a roasted side dish where its visual appeal is part of the appeal. Some gardeners prefer the slightly milder flavor of yellow varieties for raw preparations, though it works equally well in cooked applications.
Direct sow seeds into warm soil once frost danger has passed. The bush growth habit and fast 50-day maturity make this variety well-suited to direct seeding.
Pick fruit at 6-8 inches long for the most tender, flavorful squash. Harvest regularly, at least every 2-3 days during peak production, to encourage continued flowering and fruit set. Use a sharp knife or pruners to cut fruit from the vine rather than twisting, which can damage the plant. For best quality, harvest in the morning when plants are fully hydrated.
Enter your ZIP code to see a personalized growing calendar for this plant.