Mammoth Gray Stripe Sunflower

A Taste Treat

(4 customer reviews)

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 at the proper planting time for your region in both spring and fall.
If the current shipping season is closed, your order will ship at the proper time in the next season.

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: 10 - 14 days at 68-86 degrees F
Days To Maturity: 100 days
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. Average head size is 10-15 inches, but have reached 20 inches. Extremely large heads on 9-12 foot stalks.
Shipping: View Shipping Schedule
Mammoth Gray Stripe Sunflower Ships In Both Spring And Fall
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Customer Reviews

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- Friday, January 06, 2012
Mammoth Indeed!!!
Reviewed By: Suzi (Pittsburgh, PA)
These sunflowers were awesome! They grew to about 10' in clay soil. I added some peat to the soil and they seemed to like that. It was fun to watch them grow every week. Highly recommended!

- Saturday, June 07, 2008
Plant them every year
Reviewed By: Sue (Independence, MN)
I plant this variety every year. I love the look of the mammoth plant and flower, and the birds really enjoy their seeds. I have had problems with deer chomping off the flower heads when they're 3-4 feet, so I protect them with netting until they get taller.

- Thursday, April 17, 2008
5 STARS!!!
Reviewed By: Lindsey (Mark, Illinois)
We order these seeds every year. Our sunflowers grew 15ft tall and the heads of the sunflowers were huge! So heavy! Unbelievable flower, so pretty and strong!

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