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Dame's Rocket
Photo Credit: Daniel Laubhann

Common Name: Dame's Rocket

Scientific Name: Hesperis matronalis

Habitat: roadsides, forest edges, ornamental beds

Provincial Designation: Noxious

Noxious weeds are plant species that are designated as "noxious weeds" in the Alberta weed regulation. Noxious weeds must be controlled, meaning their growth or spread needs to be prevented.

Origin

Dame's rocket is native to Europe and southwest Asia and was introduced to North America as an ornamental flower in the 1600s.

Legislated Because

It is a prolific seed producer that can quickly form dense stands in moist, shaded grassland areas and along woodland edges.

Description

This plant grows up to 1 m tall and is often branched near the top. Its flowers are fragrant, 8-15 mm wide, white or pink in colour, and have four petals each.

The alternately arranged leaves are elliptic or lance-shaped, 4-20 cm long and 2-10 cm wide, and have toothed edges. The leaves and stems are covered in hairs.

The seed pods of this plant are distinctively long and narrow, 5-10 cm long and 2-2.5 mm wide.

Learn more about this species:

SeeFact Sheets - Alberta Invasive Species Council

For More Information

Weed Management

Telephone

In Edmonton: 311

Outside Edmonton: 780-442-5311

Email invasiveweeds@edmonton.ca

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