Helianthus salicifolius

Willowleaf sunflower

Helianthus salicifolius is a perennial herbaceous plant that flowers in autumn (October, November) and can grow up to 2.5 meters tall. Its narrow leaves can reach lengths of up to 20 centimeters. It is native to the USA and is used in Central Europe as a garden and park plant. It grows best in sunny locations.

Characteristics & Description

Height, habit: Perennial deciduous plant, up to 2.5 meters
Poisonous: No
Origin: USA (Kansas, Missouri, Nebraska, Oklahoma, Texas) and as a neophyte also in other regions (distribution map)
USDA zone: 4 (-18.4 °F/-28 °C)