Photo by Forestfarm
Used with permission, all rights reserved
Acorus americanus
Also Known As
- American Sweet-Flag
Plant type
perennial, grass / grass like, aquatic
size
- H: 2'-3'
- W: 2'-3'
planting zones
- 3a-9b
Acorus americanus plant details
Acorus americanus is a broadleaf deciduous perennial aquatic grass (or grassy in appearance) with green foliage. In summer chartreuse, green and yellow flowers emerge. Features grassy texture. Grows well with sun - mostly sun and standing water - regular water. Adapts to various soil conditions. Does well in acidic, average, clay and rich soil. A good option if you're seeking something for erosion control and verticillium wilt resistant.
CHARACTERISTICS OF Acorus americanus
- Plant type: perennial aquatic grass (or grassy in appearance)
- Plant family: acoraceae
- Foliage: deciduous green
- Mature size: 2 FT - 3 FT - wide, 2 FT - 3 FT - tall
- Flowers: chartreuse, green and yellow blooms in summer
GROWING CONDITIONS for Acorus americanus
- USDA Zones: 3a - 9b
- Sun exposure: sun - mostly sun
- Watering frequency: standing water - regular
- Resistant to: erosion and verticillium wilt
- Soil needs: acidic, average, clay and rich
Nursery contributed plant descriptions
By: Forestfarm
Garden photo gallery of Acorus americanus
Gardening facts about Acorus americanus plant
How to Grow Acorus americanus
Sun Exposure
- sun - mostly sun
Water Needs
- standing water - regular
Soil Needs
- clay
- acidic
- adaptable
- average
- rich
Special Situation
- erosion control
- verticillium wilt resistant
Features
Foliage Color
- green
Flower Color
- yellow
- chartreuse
- green
Flower Season
- summer
Foliage Season
- deciduous
Texture
- grassy
Landscape groups by tags
See other plant types of Acorus for your garden
aka Acorus gramineus 'Pusillus Aurea', Acorus gramineus 'Pusillus Minimus Aurea', Dwarf Golden Sweet Flag, Dwarf Golden Sweet Flag, Grassy Leaved Sweet Flag, Pusillus Aurea Dwarf Sweet Flag
Plant Type
Perennial, Groundcover, Grass / Grass Like, Aquatic
Zones
5a-11
Size
Height: 3"-5"
Width: 6"-12"
- mostly sun - shade
- standing water - regular
aka Acorus gracillima 'Variegata', Grassleaf Sweet Flag, Grassy-leaved Sweet Flag, Variegated Sweet Flag
Plant Type
Perennial, Groundcover, Grass / Grass Like, Aquatic
Zones
5a-11
Size
Height: 6"-12"
Width: 6"-24"
- sun - mostly shade
- standing water - regular
aka Variegated Sweet Flag
Plant Type
Perennial, Grass / Grass Like, Aquatic
Zones
5a-9b
Size
Height: 10"-12"
Width: 6"-18"
- sun - mostly shade
- standing water - regular
aka Acorus calamus 'Variegatus', Acorus calamus variegatus, Striped Sweet Flag, Variegated Sweet Flag
Plant Type
Perennial, Grass / Grass Like, Aquatic
Zones
4a-10b
Size
Height: 2'-3'
Width: 2'-4'
- sun - mostly shade
- standing water - regular
aka Grassy-leaved Sweet Flag, Oborozuki Sweet Flag
Plant Type
Perennial, Groundcover, Grass / Grass Like, Aquatic
Zones
5a-10b
Size
Height: 6"-12"
Width: 6"-12"
- sun - mostly shade
- standing water - regular
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