Purple loosestrife is degrading the quality of our precious remaining wetlands. While undeniably beautiful, once it becomes established purple loosestrife frequently becomes the dominant vegetation by out-competing native plants. As native plant communities are reduced, so too are wildlife species that depend on them. Declines in ducks, geese and other wetland birds as well as muskrats, mink and some amphibians have all been noted. There is also concern that purple loosestrife may reduce spawning habitat for some fish.
Purple loosestrife produces abundant nectar and is attractive to honeybees and other pollinators.
Butterflies can often be seen obtaining nectar at its blossoms. The stiff erect stems are also used by redwing blackbirds as supports for nest construction. In the past human beings greatly contributed to the spread of purple loosestrife, planting it for its beauty and reported medicinal qualities. Although it is beautiful, we now know better than to let it spread uncontrolled across the countryside. It is illegal to sell or distribute purple loosestrife in many states, including the state of Michigan.