Muck Sunflower, Tall Narrow-leaved Sunflower

Helianthus simulans

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: simulans (sim-YOO-lans) (Info)



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


8-10 ft. (2.4-3 m)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


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:

Unknown - Tell us


Unknown - Tell us

Bloom Color:

Pale Yellow

Bloom Time:

Mid Summer


Unknown - Tell us

Other details:

May be a noxious weed or invasive

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Remove fleshy coating on seeds before storing

Properly cleaned, seed can be successfully stored


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

Augusta, Georgia

Gardeners' Notes:

No details have been posted.