Ontario Wildflowers website

Tall Sunflower
Helianthus giganteus

Other common names: Giant Sunflower

Family: Composite Family (Asteraceae)

Group: Sunflowers

Flowers: Yellow

Height: 90-360 cm (35-141 in)

Habitat: Fields and Open Areas

Grows in Sun/Shade: Sun

Books: Newcomb's Wildflower Guide: 388   

Native/Non-native: Native

Photographs: 184 photographs available, of which 2 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

Tall Sunflower (Helianthus giganteus) plant with flowers

Tall Sunflowers can get AMAZINGLY tall!! This one was in Windsor, Ontario, in early September.

Tall Sunflower (Helianthus giganteus) plants and flowers
Photograph by Graham Buck