Helianthus, Mountain Sunflower, Narrow Leaved Swamp Sunflower, Willow Leaved Sunflower
Helianthussalicifolius 'First Light'

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Helianthus (hee-lee-AN-thus)
Species: salicifolius (sal-iss-ih-FOH-lee-us)
Cultivar: First Light

Synonym:Helianthus filiformis

Synonym:Helianthus orgyalis

Category
Perennials

Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Sun to Partial Shade

Foliage
Herbaceous
This plant is resistant to deer
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
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow

Danger

Bloom Color
Gold (yellow-orange)

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter

Other details
May be a noxious weed or invasive

Soil pH requirements

Patent Information

Propagation Methods
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting