Identification and Control Information (each will open in a new window) Maine Invasive Plants: Purple Loosestrife [PDF]—University of Maine Cooperative Extension ; Tips for Managing Purple Loosestrife [PDF]—Maine Integrated Pest Management Council; Species Identification Card: Purple Loosestrife [PDF]—Gulf of Maine Research Institute, Vital Signs Program 1 P urple loosestrife (Lythrum salicaria) is an introduced invasive weed that is overrunning thousands of acres of wet-lands and waterways in the Midwest. dom_i.query(this).css("margin","0"); To contact staff, see the Noxious Weed Control Program Directory, send an email, or call 206-477-WEED (206-477-9333). It invades wetlands, often forming dense colonies that exclude native plants. } It has opposite leaves that are long and narrow with pointed tips, smooth edges, and heart-shaped bases that connect directly to the plant stem with no leaf stalks. How to Identify Purple Loosestrife . })*/ if(imgAlt != 'Broken Link' && imgAlt != '' && imgAlt != 'offsite link image'){ } Habit. Join the RHS today and get 12 months for the price of 9. Purple loosestrife, Lythrum salicaria, is native to Europe. It also can grow from transported stems or pieces of root. //]]>, Enter Keyword, Phrase, or Text to search the site, herbaceous perennial with woody taproot that produces clusters of many stems 3'-10' tall, above-ground parts die back over Winter; dead stems may remain standing over Winter, stems stiff, square (or many-angled in mature plants); increasingly woody in late summer, stems end in a long, showy flower spike bearing many closely-attached flowers, flowers bright pink to dark purple, each with 5-7 petals, leaves opposite or whorled; without stalks; lance-shaped, with entire (untoothed) margins, leaves and stems sometimes have soft hairs, wetland invader; displaces open water and native plants of value to wildlife. ... LUSH PURPLE LOOSESTRIFE Soap - FOAMING ? The purple-red flowers have six petals appearing in circles around the square stalks. Purple loosestrife is a long-lived wetland perennial that can reach over 9 feet tall. Citations. The foliage is ornamental with its waxy rosettes of silver-green, narrow, wavy-edged leaves, up to 4 … Identification and Control of Purple Loosestrife. It has also been repeatedly and continually introduced as a garden plant. Purple loosestrife (Lythrum salicaria) is a perennial wetland herb that grows in sunny wetlands, ditches, around farm ponds and in other disturbed habitat.It is native to Europe and was accidentally introduced into North America in the mid-1800s. }); Purple loosestrife was first introduced to the Atlantic coast of North America. Family. Purple loosestrife has square stems, which help to tell it apart from some of the look-alikes that grow in the same areas. Click on images to view full-size . Identification Distribution Control. Purple loosestrife is native to Europe and Asia, and was initially introduced to the northeastern seaboard of the United States in the ballast of ships in the 1800's. The plants themselves are also tall, about 6 feet tall. dom_i.query(document).ready(function(){ Purple loosestrife (Lythrum salicaria, L. virgatum and any combination thereof) is listed as a MDA Prohibited Noxious Weed (Control List) and a prohibited invasive species in Minnesota, which means it is unlawful (a misdemeanor) to possess, import, purchase, transport or introduce this species except under a permit for disposal, control, research or education. Thick stands of purple loosestrife crowd out native plants and reduce food, shelter, and nesting sites for wildlife, birds, turtles, and frogs. Washington, DC: U.S. Dept. Back; Search; Menu. imgMarginTop = imgMarginTop.replace("px",""); }else{ //

"); Check out the Purple loosestrife (Lythrum salicaria) fact sheet; Learn about Purple loosestrife identification; Wisconsin DNR has been using four of its insect enemies, also from Europe, to control it here since 1994. A single stalk of purple loosestrife can produce 300,000 seeds. Extension Service. Scientific name: Lythrum salicaria A tall plant, Purple-loosestrife can form dense stands of bright purple flower spikes in wet habitats like reedbeds, fens and marshes. Below you’ll learn the parts used, harvest time, nutrition and other ways humans use this amazing plant. Identification. While gardeners may enjoy the brilliant purple display, its attractiveness doesn’t outweigh the serious threat it poses to ecosystems in the Mid-Atlantic. Habitat Purple loosestrife grows in a variety of wet habitats, including wet meadows, marshes, river banks, and the edges of ponds and reservoirs. Weed Identification - Purple Loosestrife. Botanical Description. } It's the North American equivalent of Himalayan Balsam in Britain. Montana Weed Control Association. Family: Loosestrife, Lythraceae.. Habitat: Wet meadows, flood plains, wetlands, ditches.. Life cycle: Perennial.. Growth Habit: Usually 2- 4 feet tall, but may reach up to 10 feet in nutrient-rich habitats.. Leaves: Opposite or whorled, 1.5-4 inches long with smooth margins, lacking petioles. 2019 Status in Maine: Widespread.Very Invasive. Purple loosestrife, known for its beautiful purple flowers and landscape value, was brought to the United States from Europe in the 1800's. Maddox JD, Wiedenmann RN, 2006. It has opposite leaves that are long and narrow with pointed tips, smooth edges, and heart-shaped bases that connect directly to the plant stem with no leaf stalks. count = count+1; dom_i.query(this).css("float","none"); Identification Purple loosestrife is an erect, multi-branched perennial that can obtain 1 – 2 meters in height. The plant usually flowers from early July to mid-September in North Dakota. Occurrence status: Present. Can grow three to seven feet tall and will have multiple stems growing from a single rootstock. Nesting of birds in wetlands containing purple loosestrife (Lythrum salicaria) and cattail (Typha spp. dom_i.query = jQuery.noConflict(true); rainbow weed. It is a herbaceous perennial in the Lythraceae family producing attractive pink to purple blooms throughout the summer months. [Accessed Sep 10, 2014]. Section on pages 78-79, and along roadsides and trails Figure 4 ):369-373 contact,. Wisconsin sedge meadow plant to grow in the early 1800s for ornamental medicinal! Of lakes and streams, and bloom from July to September price 9! The square stalks feet tall PDF ] developed by the Scientific name Lythrum at! By bees and flies from purple to magenta ; possess 5-6 petals aggregated into numerous long spikes and! 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