• Large mature mammoth grey-stripe sunflower with developing seeds on a green backdrop
  • Mammoth grey-stripe large sunflower seed in a bowl on a neutral natural backdrop
  • Large mammoth grey-stripe sunflower head with prominent center seeds on a green backdrop
  • Large fully developed mammoth grey-stripe sunflower at sunset on a golden backdrop
  • Close-up of mature mammoth grey-stripe sunflower head with visible seeds outdoors
In stock
Shipping now

Sunflower Seeds - Mammoth Grey-Stripe

A favorite variety for eating and growing, and perfect for a kid's garden

Size
Trusted by 4M+ Gardeners
Grow Guarantee
Fast Shipping
Secure
Shipped from Asheville, NC

About the Variety

Best SellerStaff Pick

Key Features

Heat Tolerant
Drought Tolerant
Attracts Bees
Attracts Butterflies
Fast Growing
Easy to Grow
Perfect for Cut Flowers
Perfect for Borders
Perfect for Dried Flowers
Perfect for Xeriscaping
Edible
Reduces Erosion
Microgreens

Plant Details

BOTANICAL NAME

Helianthus annuus

LIFE CYCLE

  • Annual

LIGHT REQUIREMENT

  • Full Sun

GROWTH HABIT

  • Upright

PLANT HEIGHT

  • Up to 144 inches

PLANT TYPE

  • Giant
  • Single-Flowered

COLOR

  • Yellow

The most familiar and iconic of all the classic sunflowers, our 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!!

  • • Annual; A crowd favorite!
  • • Delicious seeds
  • • Prefers full sun exposure

Planting Information

PLANTING SEASON

  • Spring

SOWING METHOD

  • Direct Sow

PLANTING DEPTH

  • 1/2 inch

WATER NEEDS

  • Average

PLANT SPACING

  • 12 to 18 inches

HARDINESS ZONES

  • N/A - Annual

COVERAGE

Amount Avg Seed Count Recommended Coverage
Packet 40 Up to 10 Sq. Ft
1 Ounce 390 Up to 30 Sq. Ft
1/4 Pound 1,550 Up to 125 Sq. Ft
1 Pound 6,200 Up to 500 Sq. Ft
5 Pounds 31,000 Up to 2,500 Sq. Ft

Planting Guide

View our Sunflower Planting Guide to learn more.

Ready to Grow

We guarantee that our seeds & bulbs will be true to type and ready to thrive. If something doesn't grow as expected, we will make it right. Questions? Call us at 855-440-2929

Sunflower Seeds - Mammoth Grey-Stripe

$5.49

Companion Plants

Gardening Tools

Sunflower Seeds - Mammoth Grey-Stripe FAQs

What is Mammoth Grey-Stripe Sunflower also known as?

Mammoth Grey-Stripe Sunflower is also known as Comb Flower, Golden Flower of Peru, and St. Bartholomew's Star.

What type of seed is Mammoth Grey-Stripe Sunflower?

Mammoth Grey-Stripe Sunflower is classified as heirloom seed and open pollinated seed.

Grown by Our Community • All sunflower