Squash Supersonic F1 Seed

SKU: 12207STDTRT-250SD
Squash Supersonic F1 Seed

Squash Supersonic F1 Seed

SKU: 12207STDTRT-250SD
style: TREATED
size: 250 seeds
Supersonic is an extra-early, yellow straightneck summer squash with extremely high yield potential and continuous setting ability. The bush plants produce attractive fruit that are best harvested at 5-6" in length. Supersonic has the precocious yellow gene, which gives the fruit a yellow stem and the ability to mask the fruit greening symptoms caused by CMV and WMV.

Buy more, save more! All eligible quantity discounts will be automatically applied in your Cart.

SizeQuantityPrice Each
STANDARD / 1,000 seeds / TREATED20+$33.92
STANDARD / 1,000 seeds / TREATED5+$37.64

NA / 1KSD / TRT backordered until 2024-02-23


We offer free standard shipping on orders above $250!

For orders below $250, shipping and handling charges will include outbound freight and packaging materials. Charges apply to all orders, and are based on the total order value before tax. Expedited services are also available at Checkout, and additional charges apply.

We are currently processing and shipping most orders within 3-7 business days of receipt (backorders not included), via USPS or UPS. Due to high demand during the peak months of January to May, orders may require additional time for packaging /shipment. Live plants are only shipped at certain times of the year and may be delayed due to poor weather conditions. Plugs & liners ship directly from our plug & liner grower specialists.

We do not ship on Saturday or Sunday. Orders placed Saturday to Sunday are considered received on Monday. We also do not ship during company-recognized holidays.

Currently, Harris Seeds only ships within the continental United States.

See our full shipping policy

  • Soil temperature: 70-75°F
  • Germination Lighting: Cover Seed
  • Germination Days: 6-12 Days
  • Seeding depth: 0.75-1.0"
  • Maturation days: 40 Days
  • Planting method: Direct Sow
  • Spacing in row: 24-36"
  • Spacing between rows: 3-5'