Plant Name: Helianthus annnuus
Common name: Common Sunflower
Plant Type: Annual
Plant Height: 1.5’ – 8’
Spread: 1.5’ – 3’
Bloom Time: July – October
Flower Color: Yellow with Bicolor Rays & Brown to Purple Center Disk.
Exposure: Sun
Soil Requirements: Average Moist, Well-Drained; Tolerates Poor Soil.
Water Needs: Medium
Attributes: Birds seek seeds; Deer & Drought Tolerant; Nectar Plant for some Insects.
Note: Spread rapidly by seed; Extensive crossing & hybridizing results in large number of cultivars; rust, leaf fungal spot, & powdery mildew can be a problem.
Uses: Back Borders, Cottage Gardens; Bird Gardens; Wildflower & Native Plant Gardens.
Native to: Manitoba to Minnesota to Texas & westward.
Oregon Native: YES
USDA Hardiness Zone: 2 – 11
Report by: Viki Ashford
Photo by: Carlotta Lucas