Agrostis Gigantea, or more commonly know as Redtop, is a graminoid with green foliage and yellow flowers of the genus Agrostis. It has a rapid growth rate and a height of 2 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during mid spring and is intolerant of shade. Agrostis Gigantea or Redtop's floral region is North America US Lower 48 and Alaska, specifically in the states of Alaska, Alabama, Arkansas, Arizona, California, Colorado, Connecticut, Delaware, Georgia, Iowa, Idaho, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin and Wyoming.
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