Sunflower Seeds Mammoth Grey Stripe

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Talk about making a statement in the garden! Mammoth Grey Stripe’s huge blooms, growing to be 12” across, sit atop stems that grow to be 8-12’ tall. These garden giants were developed for seed production and attract a variety of birds to the garden. Mammoth Grey Stripe are extremely fun to watch grow and their large size make them great for scattering throughout the meadow or using as a background screen. This huge variety is also perfect for a child’s first garden. All of the seed we handle at American Meadows is non-GMO, neonicotinoid-free and guaranteed to grow. Annual.

Zones
1 - 10 (Hardy in your zone)
Advantages
Easy to Grow
Easy to Grow
Native
Native
Extended Blooms
Extended Blooms
Hedge / Screen
Hedge / Screen
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 96-144 inches tall (8-12 feet)
Bloom Time Summer
SKU HGSG
With huge flowers (often 10 or 12" inches across) these garden giants are hybrids developed for seed production (Sunflower oil, bird seed, etc.) But we've had so many requests for them, we now have them available for meadow planting. Remember, these are the ones that grow from 8 to a whopping 12 ft. tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds. Enjoy!
Associated SKUs
HGSG
HGSQP (1/4 Pound)
HGSLB (1 Pound)
HGSLB5 (5 Pounds)
HGSLB10 (10 Pounds)
Common Name Sunflower
Botanical Name Helianthus annuus
Seed Life Cycle Annuals
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Yellow
Mature Height 96-144 inches tall (8-12 feet)
Bloom Time Summer
Ships As Seed
Coverage 1/4 lb covers 2,177 sq ft.
1 lb covers 8,710 sq ft.
5 lbs covers 1 acre
10 lbs covers 2 acres
Seeds Per Pound 3,050
Days to Germination 10-20 days depending on soil and weather conditions.
Days to Bloom Blooms in 100-110 days
Soil Moisture Dry, Average, Moist/Wet, Well Draining
Soil Type Clay Soil, Sandy Soil, Loamy Soil, Drought/Dry Soil, Moist/Wet Soil
Native Yes
Ideal Region Northeast, Southeast, Midwest, Southwest, West, Pacific Northwest
Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Advantages Easy to Grow, Native, Extended Blooms, Hedge / Screen
Additional Information Average flower size is 10-15" but can reach up to 24" across.
Edible? Yes
Is It Storable? Yes - You can store your seed in any cool (not freezing) dry place that is not subject to extreme temperature variations.
Neonicotinoid-Free Yes - Learn More
Ships to Canada Yes

Most orders ship within 48 hours or less.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Orders for in-season products ship within 5 business days. Depending upon your order date, we may hold your shipment to combine it with other products on your order, if applicable. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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REVIEW SNAPSHOT®

by PowerReviews
American MeadowsSunflower Seeds Mammoth Grey Stripe
 
4.6

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (8)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Hardy (5)
  • Attractive (4)
  • Healthy (4)
  • Long bloom time (4)
  • Low maintenance (4)

Cons

  • Susceptible to pests (3)

Best Uses

  • Border control (4)
  • Large areas (4)
  • Cut flowers (3)
  • Garden (3)
  • Outdoors (3)
    • Reviewer Profile:
    • Avid gardener (6), Getting started (4)
    • Primary use:
    • Personal (5)

Most Liked Positive Review

 

Mammoth Grey Stripe sunflower, The King

Very easy to grow but very beautiful too! They are great for kids because of how high and big they get, but also because of how easy(kids like to watch plants grow but...Read complete review

Very easy to grow but very beautiful too! They are great for kids because of how high and big they get, but also because of how easy(kids like to watch plants grow but wont help take care of them normaly) they are to take care of! I have a big open field in my backyard that overlooks a large home that can see everything we do, so we also planted them to block the other houses view! The seeds taste great rosted with salt! They makes songbirds come in flocks:)! A big problem is that bids and pests will eat them none stop, put cheese cloth or nylon sock over the head of the plant to prevent this! If you do want to eat the seeds cut the head off(You need a tall guy to reach the head normaly, they get to 12ft. sometimes) then let them dry for a couple of days, then hit the back with a hammer or rub two heads! I would give them a 6 out of 5 just because of how they look and grow overall!

VS

Most Liked Negative Review

 

A West Virginia Review

I bought 5 lbs. of seeds for use as decoration on the campground that my family owns and operates. I used aprox. 3 lbs. along a retaining wall for a swim lake that...Read complete review

I bought 5 lbs. of seeds for use as decoration on the campground that my family owns and operates. I used aprox. 3 lbs. along a retaining wall for a swim lake that also borders the adjacent property. The others I used in front of a barn for decor. The results were varied to say the least. All of the seeds planted seemed to sprout with no problem at all. All were evenly spaced in rows where planted. Along the side of the barn I had excellent results with the seeds. almost every plant reached between 8-10 feet with blooms of almost a foot in width.(Until a thunderstorm destroyed them... but they looked great and I still harvested the seeds) However, the ones along the bank of the pond took twice as long to grow. Some of them never grew higher than two feet while some reached 7 feet. The blooms weren't nearly as impressive. All in all I would purchase again and most likely will for the 2011 season.

Reviewed by 11 customers

Sort by

Displaying reviews 1-11

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5.0

Six Feet and Growing

By 

from Chicago, IL

About Me Getting Started

Pros

  • Hardy
  • Reliably Germinated

Cons

    Best Uses

      Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

      Started them in pots outdoors to keep them from getting eaten by the rabbits, but once they reached about 18" I transplanted them into the soil and they've taken off. No flowers yet - but they are looking great so far.

      • Primary use:
      • Personal
       
      5.0

      Mammoth Monsters!

      By 

      from Canton, TX

      About Me Avid Gardener

      Verified Reviewer

      Pros

      • Accurate Instructions
      • Attractive
      • Fragrant
      • Hardy
      • Healthy

      Cons

        Best Uses

        • Garden
        • Outdoors

        Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

        The best Sunflowers ever! Here in Texas we have plenty of sun and rain and when I added your Mammoth Grey Stripe Sunflower seeds to that mix the ground exploded. Towering plants each with their own bursting sun reigning regally above all other flowers.

        • Primary use:
        • Personal
         
        4.0

        I would buy this product again.

        By 

        from Huntsville, AL

        About Me Avid Gardener

        Verified Reviewer

        Pros

        • Attractive
        • Hardy
        • Healthy
        • Versatile

        Cons

          Best Uses

          • Garden

          Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

          I planted the sunflowers seeds in early April in my vegetable garden. With the first sunflower seeds, I did not have as much success as I would have liked. I soaked the sunflower seeds for 24 hours and replanted. I now have sunflowers that are six feet high. I am using the sunflowers for companion plants for my cucumbers. The sunflowers' sturdy stalks provide support for the cucumber vines.

          • Primary use:
          • Personal
           
          5.0

          Summer Beauty

          By 

          from Spokane, WA

          About Me Avid Gardener

          Verified Reviewer

          Pros

          • Long Bloom Time
          • Low Maintenance

          Cons

            Best Uses

            • Border Control
            • Large Areas

            Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

            Summer in the NW is all about your sunflowers. Addition to our 12 acre property and our work to create a meadow.

             
            4.0

            Great for some, not for me.

            By 

            from Hampton Roads, VA

            About Me Avid Gardener

            Verified Reviewer

            Pros

            • Large Bulb Size
            • Long Bloom Time
            • Low Maintenance
            • Reliable Growth

            Cons

            • Susceptible to Pests

            Best Uses

              Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

              I planted these alongside a mixture. I had so many sunflowers come up and I found myself in awe. The downside is that none of THESE popped up; at least not for me. I gave a seedling to my friend and his did so well! I'm not blaming the seed as much as I am the conditions. His garden receives south-facing sunlight all day and is backed by a brick wall. My guess is that, with the right conditions, he had much better luck with a single sprout than I did with several handfuls. I couldn't possibly give this a negative review because I've seen the final result. They are beautiful and make such a statement. Just be sure they get all the sunlights and the birds don't get to the seed before the soil does,

               
              5.0

              Mammoth Grey Stripe Sunflower Seeds

              By 

              from Orange County, CA

              About Me LEED AP, Master Gardener

              Pros

              • Very visible and tall
              • Vivid Colors

              Cons

                Best Uses

                • Border Control
                • Cut Flowers
                • Erosion Control
                • Impressive displays
                • Large Areas

                Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

                Very pleased to find this quality seed at such a reasonable price.

                (1 of 1 customers found this review helpful)

                 
                5.0

                Great product for a great price!

                By 

                from Maine, NY

                About Me Avid Gardener

                Verified Reviewer

                Pros

                • Price
                • Quality

                Cons

                  Best Uses

                  • Cut Flowers
                  • Wedding favors

                  Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

                  I bought these to put in small bags as wedding favors, as I wanted to give away something people could use. Best price out there, and quality seeds to boot! Thank you!

                   
                  3.0

                  A West Virginia Review

                  By 

                  from Milton, W.V.

                  About Me Casual Hobbyist, Getting Started

                  Verified Reviewer

                  Pros

                  • Large Bulb Size
                  • Long Bloom Time
                  • Low Maintenance

                  Cons

                  • Susceptible to Pests

                  Best Uses

                  • Border Control
                  • Cut Flowers
                  • Erosion Control
                  • Large Areas

                  Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

                  I bought 5 lbs. of seeds for use as decoration on the campground that my family owns and operates. I used aprox. 3 lbs. along a retaining wall for a swim lake that also borders the adjacent property. The others I used in front of a barn for decor. The results were varied to say the least. All of the seeds planted seemed to sprout with no problem at all. All were evenly spaced in rows where planted. Along the side of the barn I had excellent results with the seeds. almost every plant reached between 8-10 feet with blooms of almost a foot in width.(Until a thunderstorm destroyed them... but they looked great and I still harvested the seeds) However, the ones along the bank of the pond took twice as long to grow. Some of them never grew higher than two feet while some reached 7 feet. The blooms weren't nearly as impressive. All in all I would purchase again and most likely will for the 2011 season.

                   
                  5.0

                  Mammoth Grey Stripe sunflower, The King

                  By 

                  from Emergration Canyon, UT

                  About Me Getting Started

                  Verified Reviewer

                  Pros

                  • Attracts snogbirds
                  • Edible Seeds
                  • Good for privacy screens
                  • Grows Fast
                  • Largest Flower I Ever saw
                  • Long Bloom Time
                  • Low Maintenance
                  • Reliable Growth
                  • Vivid Colors

                  Cons

                  • Susceptible to Pests

                  Best Uses

                  • Border Control
                  • Large Areas
                  • Seeds

                  Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

                  Very easy to grow but very beautiful too! They are great for kids because of how high and big they get, but also because of how easy(kids like to watch plants grow but wont help take care of them normaly) they are to take care of! I have a big open field in my backyard that overlooks a large home that can see everything we do, so we also planted them to block the other houses view! The seeds taste great rosted with salt! They makes songbirds come in flocks:)! A big problem is that bids and pests will eat them none stop, put cheese cloth or nylon sock over the head of the plant to prevent this! If you do want to eat the seeds cut the head off(You need a tall guy to reach the head normaly, they get to 12ft. sometimes) then let them dry for a couple of days, then hit the back with a hammer or rub two heads! I would give them a 6 out of 5 just because of how they look and grow overall!

                   
                  5.0

                  i love sunflowers, and these are great!

                  By 

                  from indiana

                  About Me Getting Started

                  Verified Reviewer

                  Pros

                  • Accurate Instructions
                  • Attractive
                  • Fragrant
                  • Hardy
                  • Healthy
                  • Versatile

                  Cons

                    Best Uses

                    • Outdoors

                    Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

                    these are super easy to grow and they look great!

                    • Primary use:
                    • Personal

                    (1 of 1 customers found this review helpful)

                     
                    5.0

                    Super Cool, Easy to Grow, Massive!!!

                    By 

                    from Port Saint Lucie, FL

                    About Me Avid Gardener

                    Verified Reviewer

                    Pros

                    • Accurate Instructions
                    • Attractive
                    • Hardy
                    • Healthy

                    Cons

                      Best Uses

                      • Garden
                      • Outdoors

                      Comments about American Meadows Sunflower Seeds Mammoth Grey Stripe:

                      Easy to Grow and no maintanance required. Just stick the seed in the ground and watch them grow.

                      • Primary use:
                      • Personal

                      Displaying reviews 1-11

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                      USDA Hardiness Planting Zones

                      To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

                      • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
                      • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

                      Find Your Planting Zone:

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