Skip to Content
American Meadows (USD) English
Home / Wildflower Seeds / Individual Wildflower Seed Species / Sunflower Seeds Mammoth Grey Stripe

Sunflower Seeds Mammoth Grey Stripe

SKU: AM015991
Choose a Size:
Buy in Bulk & Save!
1/4 pound
1 pound
5 pounds $15.19/lb
10 pounds $11.97/lb
Most orders ship within 2 business days.
Talk about making a statement in the garden! Mammoth Grey Stripe has huge blooms, growing up to 12" across. Each bloom sits atop stems that grow to be 8-12 ft tall. Extremely fun to watch grow, Mammoth Grey Stripe is a great choice for scattering throughout the meadow, using as a background or privacy screen, or creating a child's first garden. Massive seed heads are good for harvesting and roasting or leaving in place to feed birds. An heirloom, open-pollinated Sunflower, Mammoth Grey Stripe is loved by a variety of bees, butterflies, and hummingbirds, too. All of the seed we carry at American Meadows is non-GMO, neonicotinoid-free and guaranteed to grow. Annual.
key features
Botanical Name
Helianthus annuus Mammoth Grey Stripe
Seed Life Cycle
Growing Zones
Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9, Zone 10
Ideal Region
Northeast, Southeast, Midwest, West, Southwest, Pacific Northwest
Light Requirements
Full Sun, Half Sun / Half Shade
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
Native, Bee Friendly, Attracts Butterflies, Attracts Hummingbirds, Attracts Birds, Easy To Grow, Cut Flowers, Mass Plantings


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!