Mammoth Gray Stripe Sunflower - Henry Field's Seed & Nursery

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Sunflower Seed - Mammoth Gray Stripe Sunflower

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Mammoth Gray Stripe Sunflower

Mammoth Gray Stripe Sunflower

100 days - Enormous bright yellow sunflowers.

(0 customer reviews)

Mammoth Gray Stripe has enormous bright yellow sunflowers on big 8-12 ft. stalks. Heads measure 20 in. wide, full of plump, tasty seeds.

Everyone loves sunflowers! Their bold flowers are focal points in the garden and vase, while the seeds provide food for birds. Easy to grow-just sow and stand back!

Tell me when this is on sale!

Product Details

Height: 9 - 12 feet
Spacing: 2 - 4 feet
Depth: 1 - 1 1/2 inches
Spread: 15-24 inches
Sun/Shade: Full Sun
Germination: 2-3 weeks at 68-86 degrees F
Color: Orange - Yellow
Foliage: Very rough; to 1 foot long; heart shaped

Blooms: July-September
Comments: Will do well in poor soil. Tolerates heat and dry conditions Days to Maturity - 100-110 days Average head size is 10-15 inches, but have reached 20 inches. Extremely large heads on 9-12 foot stalks.
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