Sunflower American Giant F1 Seed

Sunflower American Giant F1 Seed

Sunflower American Giant F1 Seed

form: RAW
size: 50 seeds
American Giant is a super tall hybrid sunflower is a sure bet to sell to homeowners who are itching to grow the tallest sunflower in the neighborhood! Growing anywhere from 8 to 15' tall, American Giant Sunflower is less likely to fall over in wind or rain compared to other "giant" types. It also makes an excellent windbreak along hedgerows or the perimeter of properties. Best yet, leave the heads on for seed for the birds later in the season!

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 1-3 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: 4-8 Days
  • Grow on temperature day: 55-60°F
  • Plant spread: 24-30"
  • Plant height: 96-120"
  • Plant type: Annual
  • Seeding depth: 0.75-1.0"
  • Maturation days: 70 Days
  • Planting method: Direct Sow