While many violet-colored blooms are perfect for gardens across the United States, purple loosestrife (Lythrum salicaria) is ...

9. Purple Loosestrife (Lythrum salicaria) – Highly Invasive Purple loosestrife is extremely invasive and disrupts ecosystems by displacing native plants, particularly in wetland areas.

Common identifying characteristics of this species include: As purple loosestrife forms thick monocultures, the plant can be particularly difficult to manage and remove depending on the size of the ...