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Acorus americanus

Also called American Sweetflag, Several-Veined Sweetflag


More About Acorus americanus

  • Hardy perennial, swamp or bog plant
  • Foliage and rhizomes have a sweet citrus scent when bruised or cut
  • Wheat-like flowers
  • Great for stabilizing pond edges
  • Bloom Time: June to July

Interesting Notes:

Widely confused with the European strain Acorus calamus, it can be easily identified by the distinct ribs on the leaves. Acorus calamus has one midrib and Acorus americanus have several. Both species have naturalized throughout North America. 

Acorus americanus was used by Native Americans as a replacement for ginger, cinnamon, and nutmeg. The rhizomes were also used in perfumes.

Zone:

3

Height:

60-90 cm

Spread:

70-90 cm

Colour:

Brown
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Sweet Flag Growing and Maintenance Tips

Grow in a moist to wet soil, in full sun or partial shade. Spreads quickly by rhizomes and works well for retaining soil at the edge of streams and ponds. Can tolerate periods of drought, but suffers in appearance. 


Acorus americanus Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Fast
Fast
Deer Resistant
Deer Resistant
Low Maintenance
Low Maintenance
Native to Ontario
Native to Ontario
Bog or water garden
Bog or water garden

Soil Moisture

Wetland (Root submerged)
Moist to Wet Soils

Attributes

Deciduous

Flowering Time

Summer
Lt. Spr-Sum

Habit

Upright

Foliage Color

Green

Landscape uses

Woodland/woods edge
Naturalizing