Helianthus giganteus
- Common name(s): Giant Sunflower, Tall Sunflower
- Blooming time: fall
- Blooming colors: yellow
- Height: up to 2 m
- Origin: North America
- Hardiness zone (USDA): Z4 – up to -28 °C
- Family: Asteraceae
- More infos: the images are showing Helianthus giganteus “Sheila’s Sunshine”