Sorghum Halepense, or more commonly know as Johnsongrass, is a graminoid with green foliage and yellow flowers of the genus Sorghum. It has a rapid growth rate and a height of 3.5 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is summer and fall, blooms during late summer and is intolerant of shade. Sorghum Halepense or Johnsongrass's floral region is North America US Lower 48, Hawaii and Puerto Rico, specifically in the states of Alabama, Arkansas, Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Iowa, Idaho, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin and Wyoming.
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