Helianthus giganteus '~Species'

Giant Sunflower, Swamp Sunflower, Tall Sunflower

Family: Asteraceae Aster


Type Annual, perennial
USDA Hardiness range n/a
Exposure Full sun
Bloom color Yellow
Bloom time Mid Summer to Mid Fall
Water needs Moist to wet
Landscape uses Border, massing, seashore, specimen
Height 4' to 7' / 1.20m to 2.20m
Spread n/a
Growth rate Moderate
Bloom attributes Attracts butterflies, suitable for cut flowers
Leaf color Green
Fruit color n/a
Soil pH requirements Neutral
Soil type Clay, loamy
Form Upright or erect
Attributes and features Attracts birds, native to North America, naturalizing