The plant will grow in rich, marshy areas. Lythrum salicaria (Purple Loosetrife) is listed in the Invasive Plant Atlas of the United States. Pruning can be done in Autumn or Spring, cutting down the plant to just a few centimetres high. Purple Loosestrife ( Lythrum Salicaria) Purple Loosestrife is a very colourful flower which will send up spires of reddish-purple flowers from June though to August. The Purple Loosestrife flower inhabits reed swamps, margins of lakes and slow-flowing rivers, ditches and marshes. Lythrum salicaria 'Robin' Other names. Purple loosestrife (Lythrum salicaria) is listed as a noxious weed in nearly every state in the U.S, and is therefore illegal to sell, buy, trade or transport. Purple loosestrife (Lythrum salicaria) flowers June – September. Lythrum plants were brought to North Dakota for flower gardens because of their striking color, ease of growth, winter hardiness, and lack of insect or disease problems. Lythrum salicaria L. var. Planting, sale, or other distribution without a permit is also prohibited in Indiana ( 312 IAC 14-24-12 ). It is believed to have been first introduced into the U.S. from seed contained in ships’ ballast, and it became established in certain estuaries in the northeastern states by the early 1800s. They are an invasive species in many areas in Northern America, and growing them is banned in the garden. Lythrum salicaria, commonly called purple loosestrife, is a clump-forming wetland perennial that is native to Europe and Asia. According to the U.S Forest Service, Invasive species have contributed to the decline of 42% of U.S. endangered and threatened species, and for 18% of U.S. endangered or threatened species. Bender, J.; Rendall, J. Lythrum salicaria: element stewardship abstract. Lythrum salicaria is listed as an exotic weed in Illinois (525 ILCS 10/3, 10/4) making it illegal to buy, sell or distribute plants, its seeds, or any part without a permit. Purple loosestrife, a beautiful garden plant with an aggressive nature, was first introduced into North America in the early 1800s. Pruning in Autumn will prevent the spread of unwanted seed. It infests waterways across the entire continental U.S. (with the exception of Florida below the panhandle) and Canada below the Arctic Circle. Lythrum Care and Growing. Glyphosate is a non-selective herbicide, and extreme care must be taken to avoid contact with non-target plant species. Click on a scientific name below to expand it in the PLANTS Classification Report. The purple loosestrife plant (Lythrum salicaria) is an extremely invasive perennial that has spread throughout the upper Midwest and Northeastern United States.It has become a menace to the native plants in the wetlands of these areas where it chokes out the growth of all its competitors. How to Grow Lythrum Plants in your Garden Gardener's HQ Guide to Growing Loosestrife and Purple Willow Herb. Care. Botanical name. It was introduced to the United States and Canada as an ornamental for wetlands in the 1800s. Classification. Bibliography. Variety or Cultivar 'Robin' _ 'Robin' is a tall, clump-forming, herbaceous perennial with erect, branching stems bearing linear to lance-shaped, mid- to dark green leaves and slender, spike-like racemes of deep pink to purple-pink flowers from early summer into early autumn It can grow up to 120 cm tall. Lythrum plants are hardy perennials that can reach an height of 150 cm.. By streams,rivers and lakes. It spreads mainly by seeds where a 60-70% survival rate is not uncommon. Purple loosestrife 'Robin', Dye plant 'Robin' Genus. The plant was sold in North Dakota by its genus name Lythrum for at least 50 years. The name, lythrum, comes from the Greek for blood, in reference to the color of the flowers in some species. Purple Loosestrife (Lythrum Salicaria Rosy Gem) - This attractive perennial produces a showy display of carmine-colored flower spikes throughout much of the summer. It made its way over from Europe in the 1800’s. In Spring divide plants if necessary and apply a thick mulch. vulgare DC. Lythrum needs water and … Lythrum Lythrum. The restoration of sites depends on these non-target species as they recolonize the area after the purple loosestrife is eliminated.
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