Sunflower Seeds (Organic) - Mammoth Grey-Stripe

Sunflower Seeds (Organic) - Mammoth Grey-Stripe

Size Price Savings Quantity
Packet $6.29
1 Ounce $14.69
1/4 Pound $41.99 ($10.49/ounce) 29% Savings
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  • Our most popular cultivar for snacking is now certified organic
  • Annual; A crowd favorite!
  • Giant flowers with delicious seeds
  • Prefers full sun exposure
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Life Cycle Annual
Planting Season Spring
Color Yellow
Growth Habit Upright
Plant Height Up to 144 inches
Bloom Season Summer through Fall

Plant Characteristics Attracts Bees, Attracts Butterflies, Attracts Pollinators, Easy to Grow & Maintain
Use Container Garden, Cut Flower Garden
Growing Conditions Drought Tolerant, Heat Tolerant, Outdoor

About Sunflower Seeds (Organic) - Mammoth Grey-Stripe

Helianthus annuus

Seed Type Open Pollinated Seed, Organic Seed
Plant Type Giant
Also known as Comb Flower Mammoth Grey Stripe, Golden Flower Of Peru Mammoth Grey Stripe, St Bartholomew's Star Mammoth Grey Stripe

The most familiar and iconic of all the classic sunflowers, our Organic Mammoth Grey Stripe Sunflower seeds may look like the kind you can eat, but we think you'll find them much more rewarding when planted in a sunny location. These beautiful flowers live up to their name and can grow up to a towering 12 feet high with 10+ inch blooms!!

Planting Information

Planting Sunflower Seeds (Organic) - Mammoth Grey-Stripe

Planting Season Spring
Sowing Method Direct Sow
Light Requirement Full Sun
Planting Depth 1/2 inch
Plant Spacing 8 to 12 inches
Plant Height Up to 144 inches
Water Needs Average
Hardiness Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
View our Sunflower Planting Guide to learn more.


Amount Avg Seed Count Recommended Coverage
Packet 45 Up to 10 Sq. Ft
1 Ounce 425 Up to 30 Sq. Ft
1/4 Pound 1,700 Up to 125 Sq. Ft

Companions Plants

Companion Plants for Sunflower Seeds (Organic) - Mammoth Grey-Stripe