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Mammoth Gray Stripe Sunflower

A Tasty Treat
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  • SKU
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  • 14681
  • 1 oz. pack of seeds
  • $2.99
  • 14682
  • 1/4 pound
  • $7.99

Mammoth Gray Stripe Sunflower

Description
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.
Product Details
  • FormUpright, Annual.
  • LightFull Sun.
  • Height9 - 12 feet.
  • Spread15 - 24 inches.
  • Spacing2 - 4 feet.
  • Zones3 - 9.
  • FoliageVery rough; to 1 foot long heart-shaped green leaves.
  • Flower FormBright yellow flowers up to 20 inches in diameter.
  • ColorOrange-yellow.
  • BloomsJuly - September.
  • Germination10 - 14 days at 68 - 86 degrees F.
  • Soil RequirementsLight, well-drained, dry soil.
  • Growth RateModerate growth rate.
  • Seed CountApproximately 300 seeds per ounce. 1/4 lb. is approximately 1200 seeds. Sold by weight.
  • CommentsWill 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.
  • Botanical NameHelianthus annuus 'Mammoth Gray Stripe'
  • Size8 - 14 inch flowers.
  • Depth1 inch.
  • Days To Maturity100 days.
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