Source: ARS

Plants that are mainstays of horticulture also carry lots of risk, a new Agricultural Research Service study has found. Naturalization rates of non-native horticultural plants increase the longer a plant is grown and sold.

Non-native horticultural plants, including most edible and landscape plants, bring enormous benefit to the United States, but they are also a source of invasive plants that harm our natural environments. Naturalized horticultural plants are non-native plants that escape gardens and farms and are able to survive independent of cultivation. Invasive plants are naturalized species that invade natural areas, displace native plants and alter ecosystem functions.

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