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Acorus americanus


Acorus americanus, known commonly as Sweetflag, is a cool season perennial plant that is found growing throughout hardiness zone 3-6. Growing 2-3', Acorus americanus naturally grows along riparian corridors, pond banks, and constantly wet meadows. Sweetflag has beautiful, tall, green, aromatic foliage that is deer resistant and spreads rapidly by rhizomes, forming dense mats, making it an effective buffer for streams and ponds, preventing bank erosion.

  • »  OBL wetland indicator
  • »  Aromatic foliage
  • »  Deer resistant

Additional Information
Height 24-36 in
Hardiness Zone 3-6
Color Green
Detailed Description for Acorus

As a member of the Acorales order, Acorus americanus is one of the oldest surviving monocots in the world. It was historically planted along Native American paths, trade routes, and around village sites, where it was often used medicinally, ceremonially, and for trade. Acorus americanus is an OBL wetland perennial, growing in shallow water and moist soils. Their leaves may be mistaken for Iris, but upon closer look you will notice a raised, off-center mid-rib vein, as well as a cylindrical, finger-like spadix protruding out from a stiff, stem-like spathe. This odd flower is made of up many smaller flowers, intricately packed together. They spread by seed or by rhizomes, forming small but scattered colonies along stream banks. Unfortunately, Acorus americanus is now an endangered plant species in our home state of Pennsylvania. At Kind Earth Growers, we grow this plant as a way to preserve it for future generations.

Great Substitutions for Acorus
Great Companions for Acorus