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Scleranthus uniflorus (Knawel cushion)
1 hour care
per year
per year
0.05m
Max height
Max height
0.3m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Scleranthus uniflorus
Other names
Knawel cushion, New Zealand moss, Gnarled cushion, Four-flowered knamel
Genus
Scleranthus Scleranthus
Species
S. uniflorus - S. uniflorus is a cushion-forming, evergreen perennial with tiny, linear, bright green leaves and inconspicuous, greenish-white flowers in mid- to late summer, each followed by a small, yellow seed.
Scleranthus uniflorus is: Evergreen
Habit
Cushion or Mound Forming
Flower
Insignificant or absent, Greenish-white in Summer
Foliage
Bright-green in All seasons
How to care
Watch out for
Pests
Generallypest free.
Diseases
Generally disease free.
General care
Pruning
Can be sheared once a year to encourage the production of fresh leaves.
Propagation
Tends to die back in the centre with age. Once this happens, lift and divide the clump.
Propagation methods
Division, Seed
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Where to grow
Scleranthus uniflorus (Knawel cushion) will reach a height of 0.05m and a spread of 0.3m after 2-5 years.
Suggested uses
Banks and Slopes, Beds and borders, Cottage/Informal, Drought Tolerant, Edging, Foliage only, Garden edging, Gravel, Ground Cover, Low Maintenance, Rock, Wildlife
Cultivation
Grow in well-drained, sandy or gritty soil in full sun. Dislikes winter wet. Does not tolerate hot, humid summers. Tolerates light foot traffic once established.
Soil type
Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4), Tender in frost (H3)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Scleranthus uniflorus
Other names
Knawel cushion, New Zealand moss, Gnarled cushion, Four-flowered knamel
Genus
Scleranthus Scleranthus
Species
S. uniflorus - S. uniflorus is a cushion-forming, evergreen perennial with tiny, linear, bright green leaves and inconspicuous, greenish-white flowers in mid- to late summer, each followed by a small, yellow seed.
Foliage
Evergreen
Habit
Cushion or Mound Forming
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Colour
Flower
Insignificant or absent, Greenish-white in Summer
Foliage
Bright-green in All seasons
How to care
Watch out for
Pests
Generallypest free.
Diseases
Generally disease free.
General care
Pruning
Can be sheared once a year to encourage the production of fresh leaves.
Propagation
Tends to die back in the centre with age. Once this happens, lift and divide the clump.
Propagation methods
Division, Seed
Monthly care advice
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Where to grow
Scleranthus uniflorus (Knawel cushion) will reach a height of 0.05m and a spread of 0.3m after 2-5 years.
Suggested uses
Banks and Slopes, Beds and borders, Cottage/Informal, Drought Tolerant, Edging, Foliage only, Garden edging, Gravel, Ground Cover, Low Maintenance, Rock, Wildlife
Cultivation
Grow in well-drained, sandy or gritty soil in full sun. Dislikes winter wet. Does not tolerate hot, humid summers. Tolerates light foot traffic once established.
Soil type
Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4), Tender in frost (H3)
USDA zones
Zone 10, Zone 9, Zone 8, Zone 7
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4), Tender in frost (H3) | Tell us... |
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