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USDA, NRCS. 2012. The PLANTS Database (, 4 October 2012). National Plant Data Team, Greensboro, NC 27401-4901 USA. Typical inventory plug

Acorus americanus

Sweet flag

Acorus americanus is a hardy, emergent wetland plant that produces a sweet, spicy scent when crushed. The plant's preferred habitat consists of shallows, ponds, and marshes. The plant spreads rhizomatous. Good for stabilizing

Historically, this plant was used by Native Americans for tribal and medicinal purposes. The rhizomes of the plant were also once used as a substitute for ginger, cinnamon, and nutmeg. 


3 ft

USDA Hardiness Zone:


Bloom Color:


Acorus americanus Characteristics


  • Full Sun to Partial Shade

Critter Resistance

  • Deer Resistant

Soil Moisture Preference

  • Wet to Moist


  • Bog
  • Fragrant

Flowering Months

  • July

Foliage Color

  • Green

Growth Rate

  • Medium

Interesting Notes:

For more information on this plant, visit the USDA PLANTS Database: