In the 1800s, US gardeners wanted beautiful purple wetland flowers, so they planted purple loosestrife; it later covered 500,000 acres and formed stands of up to 80,000 stalks an acre
Discover the story of purple loosestrife, a beautiful wetland flower introduced in the 1800s that became an invasive species, covering 500,000 acres and threatening native vegetation and wildlife across the U.S. and Canada.