Mammoth sunflower
Mammoth sunflower
Made and shipped by MIgardener
Ships from St. Clair, MI, shipping is the maker's own rate, shown at checkout.
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Mammoth is a towering sunflower with giant flower heads 12 to 24 inches across on tall, tree-like stems. Low maintenance and cheerful, it attracts butterflies and bees and yields plenty of edible seeds.
At a glance
- Type: Giant annual sunflower (Helianthus)
- Head size: 12 to 24 inches across
- Habit: Tall, single stem
- Seeds: Large and edible
- Wildlife: Attracts bees and butterflies
- Sun: Full sun
- Non-GMO: Open-pollinated heirloom
Best for
- Edible seed harvests
- Pollinator and bird gardens
- Living screens and backdrops
- Kids garden projects
- Dried stems for crafts
How to grow
Direct sow after the last frost in full sun. The tall, heavy-headed stems may need staking in windy spots. Leave heads to dry on the plant, then harvest the seeds for snacking or to feed the birds.
Flavor profile
The plump seeds are nutty and rich, delicious roasted and salted.
About MIgardener
MIgardener is a Michigan-based seed company offering affordable, non-GMO heirloom seeds for home gardeners.

- Packed and shipped by the maker, never a warehouse
- Mix any makers in one cart, one checkout, no account
- Perishables go out Monday to Wednesday in insulated packaging
More from MIgardener
St. Clair, Michigan. Ships in the same box as this one, so no extra shipping.
Product facts
- Made by
- MIgardener
- Maker based in
- St. Clair, Michigan
- Size
- Price per unit