Mammoth Grey Stripe Sunflower Seeds

Giant Sunflower • Edible Seeds
California Warm Climate Tested

Grow towering Mammoth sunflowers for giant blooms and edible striped seeds.

Sunflower in a garden

Easy Grow Info

Provide sturdy spacing and protection from strong wind as plants grow tall.
Sun
Full sun
Type
Warm season annual
Start Method
Direct sow
Height
8–12 ft

About Mammoth Grey Stripe Sunflower

Mammoth Grey Stripe is a classic giant sunflower known for its impressive height and large seed heads packed with striped edible seeds. Plants can grow several feet tall, creating dramatic vertical presence in garden beds while attracting bees and birds.

As the blooms mature, heavy seed heads form and can be harvested for roasting or left for wildlife. Strong stems and reliable growth make this variety a dependable choice for summer gardens with plenty of sun.

Why We Grow It

We grow Mammoth Grey Stripe because few plants create such instant impact in a summer garden. In California’s warm climate, these sunflowers grow tall and strong, offering pollinator support and the bonus of harvesting your own edible seeds.

Grower’s Corner

Grower’s Corner: Growing Sunflowers in Warm-Climate Gardens

Read the full guide on Grower’s Corner.

Grower’s Corner • 5–7 min read
Read the guide

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