Beginner
skill rating
Online Garden Tools
Useful videos
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
Sign up for your FREE ACCOUNT today or login to receive detailed monthly care instructions
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
Create your free Shoot garden
Create your free SHOOT garden and make a record of the plants in your garden.
Add your own photos, notes, get monthly email reminders on how to care for your plants, and connect with other gardeners. Get started now.
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
Get access to monthly care advice
Create a free SHOOT account and get instant access to expert care advice for this and other plants in your garden.
You'll also receive handy monthly email reminders of what needs doing. Create your free account.
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... |
GARDENS WITH THIS PLANT
ARTICLES WITH THIS PLANT
As well as growing and studying Japanese plants, Mark Griffiths and his partner Yoko Otsuki sometimes create gardens with them. In these, Mark’s horticultural expertise combines with the… read more
The Telegraph is delighted to announce the appointment of Andy Sturgeon as designer of The Telegraph Garden at the 2016 RHS Chelsea Flower Show. read more
To add ? to your lists,
login to your account or subscribe.
Find out more about plant lists here
or Login
To add notes for this plant login to your account or register for a new account.
Sign up for freeor Login
To add images for this plant login to your account or register for a new account.
Sign up for freeor Login
To check if this plant is suitable for your garden first login to your account or subscribe.
or Login