Japanese Blood Grass

Japanese Blood Grass, Cogongrass (all-green-leaved form)

Imperata cylindrica

Poaceae (Grass Family)

▲ colony of Japanese Blood Grass used as groundcover

▲ ▼ close-ups showing red-tipped leaves

Imperata cylindrica: Japanese Blood Grass

Location near campus: toward eastern side of Xeriscape Garden at the corner of National Ave. and Linwood in Springfield.

  • cool-season creeping perennial grass with slender, upright leaf blades with red tips
  • forms dense colonies that spread slowly to quickly
  • remove any all-green-leaved sprouts in colonies as they are quite invasive
  • green-leaved form is called cogongrass, a very serious noxious weed in southeastern U.S.
  • flowers are not too showy--small panicles within the 1-2 foot tall foliage
  • prefers moist, fertile soils; full-sun to part shade
  • does not do well in dry soils, particularly in full sun

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