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

Helianthussalicifolius

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Helianthus (hee-lee-AN-thus)
Species
salicifolius (sal-iss-ih-FOH-lee-us)
Synonym
Helianthus filiformis
Helianthus orgyalis
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
This plant is resistant to deer
Succulent
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)
Bloom Color
Gold (yellow-orange)
Bloom Time
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Bronze
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
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
Regional

This plant is said to grow outdoors in the following regions:

Glastonbury, Connecticut

Douglas, Georgia

Olathe, Kansas

Shawnee Mission, Kansas

Cato, New York

Dunn, North Carolina

Holly Springs, North Carolina

Lake Jackson, Texas

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Featured Videos

Gardener's Notes:

2
positives
2
neutrals
0
negative
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K
K
San Leandro, CA (Zone 9b) | October 2015 | neutral

This is a deer-resistant, compact form of Helianthus angustifolius. It flowers late September through October 2" bright yellow-orange daisies.

M
Dunn, NC (Zone 8a) | April 2014 | positive

I was given one root of this plant by a friend, and within a few years it had spread through half the garden. It needs staking. Around he...Read More

M
Holly Springs, NC (Zone 7b) | January 2011 | positive

I have had this plant for 3 years now. Every year it gets bigger. The first year it was in a pot, and was only about 1.5 ft. tall. This y...Read More

J
Olathe, KS | May 2010 | neutral

I got this plant from a monarch conservation event in Lawrence, and have recently planted it in a pot. It says it will grow in zones 6 or...Read More

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