Garlic mustard is a shade tolerant, invasive species with the capability to establish in our state. Garlic mustard is highly invasive and threatens the abundant wildflowers and diverse forest ecosystem of West Virginia, Virginia, Ohio, Indiana, and Illinois. Invasive Species; Garlic Mustard; About Garlic Mustard. It is called garlic Garlic mustard is single-stalked plant, which typically grows to about 3 feet tall with small white flowers near the top. It is called garlic mustard because the leaves have a garlic smell when they are crushed. As they mature, the leaves become triangular and toothed. It's tasty, garlicky flavored leaves make a fantastic pesto and great addition to soups. Garlic mustard (Alliaria petiolata) is also known as Poor Man’s Mustard, Hedge Garlic, Garlic Root and Jack-by-the-Hedge. Garlic Mustard has gained much attention in recent years for its ability to rapidly invade wooded habitats from disturbed areas. This is considered a watch list species. Garlic mustard biology and life cycle. Garlic mustard was first recorded in the United States around 1868, from Long Island, New York, and was likely introduced by settlers for food and medicinal purposes. Garlic Mustard (Alliaria petiolata) Garlic mustard has a two-year life cycle, and one plant can produce more than 7,000 seeds before dying. -National Wildlife Federation Garlic mustard (Alliaria petiolata) is also known as Poor Man’s Mustard, Hedge Garlic, Garlic Root and Jack-by-the-Hedge. Garlic mustard was brought from Europe in the mid-1800s to be cultivated for food and medicine. Garlic mustard was originally brought to the United States from Europe during colonial times as an early spring edible. Species Assessment Groups (SAG) were assembled to recommend a legal classification for each species considered for NR 40. The plants have small four-petaled flowers in spring. Garlic mustard (Alliaria petiolata) is an herbaceous, biennial forb that was introduced from Europe in the mid-1800s.This highly invasive exotic species grows and spreads extremely quickly, forming thick stands that shade-out and out-compete native understory plants and tree seedlings, to the point of completely suppressing their growth. Cavara and Grande] is a member of the mustard family (Brassicaceae). It is found in forested areas. Garlic mustard can take over the forest under story displacing native plants and interfering with growth of the remaining plants. It is an invasive plant found throughout the Northeastern and Midwestern US as well as Southeastern Canada. The recommendation for garlic mustard was based upon this literature review [PDF] developed by the department. Garlic mustard is difficult to control once it has reached a site. Why is it invasive? 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