Intermediate
skill rating
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Carex flacca (Blue sedge)
2 hours care
per year
per year
0.3m
Max height
Max height
0.45m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Carex flacca
Other names
Blue sedge, Glacous sedge, Blue green sedge, Carnation grass, Flabby sedge, Carex glauca
Genus
Carex Carex
Species
C. flacca - C. flacca is a compact, dense, clump-forming, rhizomatous, evergreen perennial with linear, arching, blue-green leaves and cylindrical spikes of insignificant, greenish-white flowers in summer.
Carex flacca is: Evergreen
Habit
Clump-forming, Arching, Compact
Flower
Insignificant or absent, Greenish-white in Summer
Foliage
Blue-green in All seasons
How to care
Watch out for
Specific pests
Aphids Aphids
General care
Pruning
Cut back in late winter in areas with cold winter climates.
Propagation
Divide in spring.
Propagation methods
Division
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Where to grow
Carex flacca (Blue sedge) will reach a height of 0.3m and a spread of 0.45m after 2-5 years.
Suggested uses
Rock, Low Maintenance, Ground Cover, Garden edging, Cottage/Informal, City, Bog garden, Beds and borders, Waterside, Woodland
Cultivation
Grow in wet, moist, or moist but well-drained soil in partial or full shade. Tolerates standing water up to 5cm deep. Can be grown in full sun in cool summer climates. Evergreen in warm winter climates. Though best with regular moisture, will tolerate moderate drought.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moisture-retentive, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Shade
Aspect
South, East, West
Exposure
Exposed, 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
Carex flacca
Other names
Blue sedge, Glacous sedge, Blue green sedge, Carnation grass, Flabby sedge, Carex glauca
Genus
Carex Carex
Species
C. flacca - C. flacca is a compact, dense, clump-forming, rhizomatous, evergreen perennial with linear, arching, blue-green leaves and cylindrical spikes of insignificant, greenish-white flowers in summer.
Native to
Mediterranean, Northern Africa, Southern Europe
Foliage
Evergreen
Habit
Clump-forming, Arching, Compact
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Colour
Flower
Insignificant or absent, Greenish-white in Summer
Foliage
Blue-green in All seasons
How to care
Watch out for
Specific pests
General care
Pruning
Cut back in late winter in areas with cold winter climates.
Propagation
Divide in spring.
Propagation methods
Division
Monthly care advice
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Where to grow
Carex flacca (Blue sedge) will reach a height of 0.3m and a spread of 0.45m after 2-5 years.
Suggested uses
Rock, Low Maintenance, Ground Cover, Garden edging, Cottage/Informal, City, Bog garden, Beds and borders, Waterside, Woodland
Cultivation
Grow in wet, moist, or moist but well-drained soil in partial or full shade. Tolerates standing water up to 5cm deep. Can be grown in full sun in cool summer climates. Evergreen in warm winter climates. Though best with regular moisture, will tolerate moderate drought.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moisture-retentive, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Shade
Aspect
South, East, West
Exposure
Exposed, 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, Sandy (will tolerate most soil types) | Tell us... |
| Soil drainage: | Moisture-retentive, Moist but well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Shade | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
ARTICLES WITH THIS PLANT
By acclaimed garden designer Joe Francis. The inspiration for the garden came from Joe’s personal experience of depression and suicidal thoughts. Joe has teamed up with Maytree, a National… read more
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