An invasive species is a non-native species whose introduction causes or is likely to cause economic harm, environmental harm, or harm to human health. The term "invasive"; is used for the most aggressive species. These species grow and reproduce rapidly, causing major disturbance to the areas in which they are present.
These five species are considered invasive in some areas of the country. Please visit www.nps.gov/plants/alien for more information.
Berberis thunbergii, Japanese barberry
Ilex aquifolium, English holly
Ajuga reptans, Bugleweed
Ilex crenata, Japanese holly
Lysimachia nummularia, Creeping jenny
These plants will not be a problem if you maintain them properly. However, always be conscious that their potential for escape is notorious. Invasive plants may disturb some natural habitats, but are the most threatening in ecosystems such as wetlands, sand dunes and fire prone areas like pine barrens where rare native plants are found. If you think the plant you have may be invasive, check your state's invasive list and take the proper steps to ensure that your plant does not become a problem.