Category Archives: Invasive Plants

Invasive Plants in Northern Virginia: Garlic Mustard

Invasive Plants in Northern Virginia: Garlic Mustard

One of the most troublesome invasive plants in Arlington County, Alliaria petiolata (garlic mustard) is an herb of European and Asian origin that was likely introduced by settlers for food or medicinal purposes. Continue reading

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Invasive Plants in Northern Virginia

As of March 2019, 116 invasive species have been documented in the City of Alexandria. On Arlington County’s most recent list, 77 plants are categorized as invasive, with another 32 designated as posing a threat. Each Monday in 2020, we will be looking at a plant designated as invasive by these local governments. Continue reading

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Giant hogweed (Heracleum mantegazzianum)

This enjoyable article by Jennifer Gagnon from Va Tech describes how to deal with the dangerous invasive, Heracleum mantegazzianum (Giant Hogweed), recently discovered in Virginia. Continue reading

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Spring Beauty or Beast?

When spring finally arrived in the DC metro area, a rather showy groundcover had already made its presence known – lesser celandine or Ranunculus ficaria.
Despite its visual appeal, this groundcover is highly invasive. Continue reading

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