Willow-leaved Sunflower, Narrow-leaved Sunflower
Helianthus salicifolius

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: salicifolius (sal-iss-ih-FOH-lee-us) (Info)
Synonym:Helianthus filiformis
Synonym:Helianthus orgyalis

Category:

Perennials

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)

Sun Exposure:

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Gold (Yellow-Orange)

Bloom Time:

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter

Foliage:

Herbaceous

Silver/Gray

Velvet/Fuzzy-Textured

Other details:

May be a noxious weed or invasive

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

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Self-sows freely; deadhead if you do not want volunteer seedlings next season

This plant is resistant to deer

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

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

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Springdale, Arkansas

Capitola, California

Glendale, California

Norristown, Pennsylvania

Gardeners' Notes:

No details have been posted.