Many plants are used for landscaping in areas well beyond their natural range. One popular example is Honey Locust, which is indigenous to the Midwestern United States, but is grown extensively in cities and towns in the eastern part of the country. In some cases, including that of Honey Locust, the practice of growing plants outside their range is relatively harmless. However, some non-indigenous species, including the related Black Locust, are invasive and can crowd out indigenous plants in natural areas.