Garlic Mustard

Photo by Paul Rischmiller

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Common Name: Garlic mustard
Scientific Name: Alliaria petiolata
Origin: Europe

Description

Garlic mustard is a biennial herb and grows as a rosette of kidney shaped leaves in the first year. The second-year plant can grow multiple stems up to four feet with triangular, sharply-toothed leaves. In May, four-petaled, white flowers grow in clusters at the top of the stem. Garlic mustard produces a multitude of seeds, which can remain viable for seven years or more.

Habitat

Garlic mustard thrives in deciduous forests and partially shaded, moist habitats.

Threat

With an early spring jump on native plants, this invader dominates forest understories. It releases chemicals harmful to soil fungus important to native trees.

NYS Threat Ranking Assessment Score = Very High, 84.00

Management

Plants can be pulled or cut in late spring when flowers are in bloom. Monitor the site in the fall and pull any emerging first-year plants. Repeat every year until the seedbank has been depleted. Selective herbicides can also be used effectively for larger infestations.

Distribution: View Map