Close Pop Up

Shopping Cart

0 items in cart
FREE $25
off any order of $50 or more today!
Oops, there seems to be an error, please re-enter your email address.

Mammoth Gray Stripe Sunflower

A Tasty Treat


Enormous yellow flowers measure 14 in. across and yield a whopper crop of seeds! High oil content makes for great roasted flavor. Grows 9-12 ft. tall. 100 DAYS.

This item ships in both Spring & Fall

  •     
  • SKU
  • Select Option
  • Price
  • 14681
  • 1 oz.
  • $2.99
  • 14682
  • 1/4 lb.
  • $6.99
  • Product Details

  • Shipping

Product Details

  • Botanical Name: Helianthus annuus 'Mammoth Gray Stripe'
  • Height: 9 - 12 feet.
  • Spacing: 2 - 4 feet.
  • Depth: 1 inch.
  • Spread: 15 - 24 inches.
  • Light Required: Full Sun.
  • Color: Orange-yellow.
  • Foliage: Very rough; to 1 foot long heart-shaped green leaves.
  • Blooms: July - September.
  • Days To Maturity: 100 days.
  • Zone: 3 - 9.
  • Germination: 10 - 14 days at 68 - 86 degrees F.
  • Form: Upright, Annual.
  • Flower Form: Bright yellow flowers up to 20 inches in diameter.
  • Soil Requirements: Light, well-drained, dry soil.
  • Growth Rate: Moderate growth rate.
  • Seed Count: Approximately 300 seeds per ounce. 1/4 lb. is approximately 1200 seeds. Sold by weight.
  • Size: 8 - 14 inch flowers.
  • Comments: Will do well in poor soil. Tolerates heat and dry conditions. Average head size is 10 - 15 inches, but have reached 20 inches. Extremely large heads on 9 - 12 foot stalks.

Gardeners who bought this also bought...

Close

Gurneys

Get the latest deals from Gurney's Seed & Nursery!

Preview exciting new products, learn about special sale events and lots more. Sign up to start receiving Gurney's Seed & Nursery e-mail updates.

Oops, there seems to be an error, please re-enter your email address.
close Pop Up