Helianthus Species, Silverleaf Sunflower
Helianthusargophyllus

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Helianthus (hee-lee-AN-thus)
Species: argophyllus (ar-go-FIL-us)

Category
Annuals

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun

Foliage
Succulent

Foliage Color
Bronze

Height
4-6 ft. (1.2-1.8 m)

Spacing
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Hardiness
Not Applicable

Where to Grow

Danger
N/A

Bloom Color
Gold (yellow-orange)

Bloom Characteristics

Bloom Size

Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored