Sunflower Mammoth Grey Striped is a tall single sunflower with huge flowers (often 10 to 12 inches across). These garden giants are developed for seed production for human and animal consumption.

Visit my video on how to harvest grey striped sunflower.

Remember, these Grey Striped are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen.

Mammoth Grey Striped are the sunflowers kids love watching them grow so fast and so tall, and of course, they're magnets for birds.

Attracts bees, butterflies and other pollinators. Tall Single Stem.

You will need 40 pounds per acre or 1 pound per 1000 square feet for smaller plots. 100 seeds will cover a ten foot square area.

As the head nears maturity, it turns upside down. This is so that birds cannot land on it and eat all the seeds. It is a natural defense mechanism.

Special Note! These HAVE to be direct sown--as do most sunflowers. They do not do well transplanted. You need to space them at least 12 to 18 inches apart.

Matures in about 80 days. Germination rate about 70% or better.

Our Non-GMO seeds are sustainable. Our packaging is environmentally friendly, climate friendly, reusable, and recyclable.

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David’s Garden Seeds is a Veteran owned business that has been offering quality sunflower seeds since 2009.

David's Garden Seeds® is a member of the GO TEXAN agriculture program.

We cannot possibly put all the directions you need for growing sunflowers in your area on the seed package. We recommend that you read articles or check with other gardeners in your area.

This is an heirloom seed, meaning it has been passed down from generation to generation for at least 75 years. As a rule, heirloom seeds taste better and will grow the same year after year.

These are also open pollinated meaning they will reproduce themselves. While all heirlooms are open pollinated not all open pollinated seeds are heirlooms.

Freshly Packed: These sunflower seeds are packed for the current growing season and will provide high germination rates next year as well.