How was purple loosestrife introduced to the Bay watershed?
Purple loosestrife was introduced to the U.S. from Eurasia in the early 1800s for ornamental and medicinal purposes, as well as via dry ballast dumped by foreign ships. It has been well established along the New England coastline since the 1830s. Purple loosestrife spread throughout the U.S. by: • Construction of and commerce on inland canals and waterways. • Increased development and use of roads. • Commercial sale and distribution of the plant for gardens. • Regional seed generation for bee forage. Since 1996, purple loosestrife has been found in nearly every U.S. state (including all Bay watershed states and the District of Columbia) and Canadian province. Why is purple loosestrife considered to be invasive? Due to its rapid growth, abundant seed production and lack of natural competitors, purple loosestrife can quickly establish itself in disturbed wetlands, reducing native plant species diversity and quality habitat for wildlife. • Purple loosestrife dominates native, wildlife-sup
