Zucchini 'Success PM Straightneck'

Cucurbita pepo

• Smooth and straight summer squash
• Powdery mildew resistant
• Early to bear fruit
• Vigorous producer
• Open pollinated

Success PM Straightneck is an outstanding open-pollinated variety developed by Cornell University, combining excellent productivity with strong resistance to powdery mildew. Bush-type plants produce a steady harvest of smooth, uniform yellow fruits best picked at 15–18 cm. Reliable, vigorous and well suited to Australian growing conditions, this variety delivers abundant yields over an extended harvest period.

‘Success PM Straightneck’ is a licensed variety, and every seed you purchase helps support public plant breeding and research at Cornell University, Ithaca, NY. Seeds from this variety can’t be reproduced with the intent to sell, nor can the variety be used in breeding projects without an approved license. A portion of each sale is paid to the breeder.

Certified Demeter Biodynamic and Certified Organic

SEED COUNT: 20seeds, 50seeds, 25gm, 100gm approx
Seed Specifications: Cucurbita pepo average 8-10 seeds/gram
Germination: Lot#14829 20 seeds % 2026

Seed Raising, Growing and Harvest Information

TRANSPLANT- Days to maturity are from direct seeding, subtract 2 weeks if transplanting. Start transplants 3 weeks before planting date in peat pots or soil blocks for minimal root disturbance. Zucchini or courgettes are sensitive to disturbance with the fine feeder roots being easily broken if you over-handle the plant. Harden off plants by reducing temperature and water. Transplant after last frost with 60cm between plants.

DIRECT SEED - Direct seed as soon as chance of all frost has passed. Optimum soil temperature for germination is about 27°C and little or no germination occurs below 15°C. Sow 2 seeds every 50-60cm in rich soil, thinning to 1 plant.

NOTE - Many growers plant multiple successions of zucchini during a season to ensure continuous harvest, transplanting the first succession immediately after frost-free day and the final succession three months before the expected first frost.