Elecampane

Inula helenium (IN-yoo-luh hel-EH-nee-um)

Family: Asteraceae Non-native Herbaceous (3-15 ft)

Elecampane is in the daisy family (Asteraceae) and is a recent introduction to North America. A native of Eurasia, this perennial weed has been introduced to several nurseries in contaminated hostas and daylilies from the Netherlands. They can be found growing primarily in disturbed areas, along roadsides and in fields. The Genus name is derived from the Greek inaein, meaning 'to clean' - as in its medicinal effects. The specific epithet, helenium , derives from Helen of Troy; elecampane is said to have sprung up from where her tears fell. Plants require a chilling period to flower. In the spring, plants spread rapidly and in early to mid-summer of their second year, flowering stems begin to elongate up to 6 feet tall. They prefer full sun to partial shade in moist, well-drained loams. Plants produce attractive, typical aster-like flowers, yellow to light orange in color. The first year, they form rosettes of large leaves on long stems that resemble mullen with hairs on both surfaces and a prominent white midvein. Preemergent herbicides may be helpful.. It is nearly impossible to remove all of the root pieces; consequently, if a container plant is infested, it should be destroyed before the weed can spread. Wear gloves to handle this plant, as contact dermatitis can occur. The plant could potentially be used in the garden border if desired. Be aware of the weediness and potential for becoming invasive. See native alternatives to the left. Insects, Diseases, and Other Plant Problems: No significant problems. Weedy.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 60 attributes.