Helianthus annuus 'Big Smile'

Common Sunflower

Family: Asteraceae Aster


Type Annual
USDA Hardiness range n/a
Exposure Full sun
Bloom color Yellow
Bloom time Early Summer to Early Fall
Water needs Dry to moist
Landscape uses Border, container, foundation, massing, screen, seashore, specimen
Height 18" to 24" / 45cm to 60cm
Spread 24" to 36" / 60cm to 90cm
Growth rate Fast
Bloom attributes Attracts butterflies, suitable for cut flowers, suitable for dried flowers
Leaf color Green
Fruit color n/a
Soil pH requirements Neutral
Soil type Sandy, loamy
Form Upright or erect
Attributes and features Attracts birds, attractive foilage, native to North America, invasive, naturalizing