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Acorus gramineus (Slender sweet flag)
1 hour care
per year
per year
0.3m
Max height
Max height
0.3m
Max spread
Max spread
5-10 years
To maturity
To maturity
Plant details
Botanical name
Acorus gramineus
Other names
Slender sweet flag, Japanese rush , Grassy-leaved sweet flag, Japanese sweetflag, Japanese sweet flag
Genus
Acorus Acorus
Species
A. gramineus - A. gramineus is a clump-forming, moisture-loving, semi-evergreen perennial with fans of two-ranked, linear, glossy, dark green leaves.
Acorus gramineus is: Semi evergreen
Habit
Clump-forming
Foliage
Dark-green in All seasons
How to care
Watch out for
General care
Pruning
Cut back after flowering.
Propagation
Divide every few years to avoid congested clumps.
Propagation methods
Division
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Where to grow
Acorus gramineus (Slender sweet flag) will reach a height of 0.3m and a spread of 0.3m after 5-10 years.
Suggested uses
Aquatic, Bog garden, Containers, Cottage/Informal, Ground Cover, Low Maintenance, Waterside
Cultivation
Plant in moist, fertile soil in sun. Can be planted in shallow water in baskets. Suitable for use as an aquarium plants but will be short-lived in water above 22C.
Soil type
Chalky, Clay, Loamy
Soil drainage
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Acorus gramineus
Other names
Slender sweet flag, Japanese rush , Grassy-leaved sweet flag, Japanese sweetflag, Japanese sweet flag
Genus
Acorus Acorus
Species
A. gramineus - A. gramineus is a clump-forming, moisture-loving, semi-evergreen perennial with fans of two-ranked, linear, glossy, dark green leaves.
Native to
Eastern Asia
Foliage
Semi evergreen
Habit
Clump-forming
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Colour
Foliage
Dark-green in All seasons
General care
Pruning
Cut back after flowering.
Propagation
Divide every few years to avoid congested clumps.
Propagation methods
Division
Monthly care advice
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Where to grow
Acorus gramineus (Slender sweet flag) will reach a height of 0.3m and a spread of 0.3m after 5-10 years.
Suggested uses
Aquatic, Bog garden, Containers, Cottage/Informal, Ground Cover, Low Maintenance, Waterside
Cultivation
Plant in moist, fertile soil in sun. Can be planted in shallow water in baskets. Suitable for use as an aquarium plants but will be short-lived in water above 22C.
Soil type
Chalky, Clay, Loamy
Soil drainage
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy | Tell us... |
| Soil drainage: | Boggy damp conditions, Moist but well-drained, Moisture-retentive | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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