Johnson Grass

Sorghum halepense

Photo of Johnson Grass
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension

Johnson grass is a serious pest in many parts of the state. Normally thought of as a southern plant it is present as far north as Warren County. An actively moving plant by virtue of rhizomes it will keep moving through a field until controlled. It grows to a height of about 10 feet and has a large seedhead similar to sudan grass.

Additional Images


  1. Rutgers
  2. Executive Dean of Agriculture and Natural Resources
  3. School of Environmental and Biological Sciences