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Mammoth Russian Sunflower

$4.50 Packet - 1 oz.
Mix ’n Match: buy 20+ eligible packets and pay just $3.75 each

Packet sizes count toward the offer. Bulk, PakPlus, and ProPak sizes are excluded.

Packet Size
Flat $7.99 shipping Germination guaranteed Non-GMO
Quick Facts
Days to Maturity75 days
Spacing18–24 in.
Germination7–10 days
Growing Information

Growing Mammoth Russian Sunflower

75 days. A commercial grade sunflower that is nonetheless as striking as any sunflower around! Besides its ornamental value, can be pressed to yield a very healthy oil low in saturated fat. Dried seeds can be eaten as a wholesome snack or can be fed to birds, poultry or rabbits. Grows 7 to 10-ft. tall, with huge, disc-shaped flower heads that turn to the sun while growing. Very frost sensitive, so sow after the soil reaches 65 to 70°F. Usually planted in rows like corn. Sow about 750 seeds per 500 sq. ft.

One oz. contains about 275 seeds.

Sowing depth

1 in.

Plant height

8–12 ft.

Botanical name

Helianthus annuus

Questions

FAQ

How deep should I sow the seeds?
Sow at a depth of 1 in..
How long until they germinate?
Typical germination: 7–10 days.
How far apart should I space them?
Recommended spacing: 18–24 in..
What’s your germination guarantee?
We stand behind the germination quality of our seed. If you have a germination issue, contact our team and we'll help make it right.
Not sure when to plant in your area? Planting dates depend on your local frost dates and growing zone.
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From the Garden

What Gardeners Are Saying

Customer Reviews

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M
MARVIN HYLTON

I order a packet or two of these almost every year to plant in my garden. They grow very well and provide food for both pollinators and the birds.