Grass · Cyperaceae family
Japanese sedge
Carex morrowii
In short a 10-second read
Japanese sedge (grass) grows to 0.3–0.45 m tall and 0.3–0.4 m wide when mature. It grows best in part shade to shade, in average to moist soil. Hardy to −26 °C.
× spread 0.3–0.4 m
Where to plant
Sun, soil, frost.
It grows best in part shade to shade, in average to moist soil. Hardy to −26 °C.
Sun
Tolerates several positions — choose to suit the rest of the garden.
Soil and water
average to moist · watering: moderate
Soil: humus-rich, loamy
Frost
It copes with a normal winter outdoors.
How much space it takes
Mature size.
The mature plant next to a person (175 cm).
Next to a person
Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
What to do and when.
Months for Central Europe. The line shows the current month.
The year at a glance
Pruning
No pruning needed — just remove dead or damaged parts (March–April).
Planting
container plant: March–May, September–October
Winter protection
not needed
Overwintering
It copes with winter on its own.
It overwinters outdoors without protection, hardy to −26 °C.
- Needs no protection
- Hardy to −26 °C
- Evergreen — green in winter too
What to combine it with
Same needs, different flowering.
They share the same sun and soil and flower in other months — so the bed flowers for longer.
European wild ginger
0.08–0.15 m
barrenwort
0.15–0.3 m
Christmas rose
0.2–0.3 mReady-made Studio combinations that include Japanese sedge
Hostas, fern and sedges with wild ginger — calm green planting for a…
Frequently asked
Quick answers.
Does Japanese sedge tolerate shade?
Yes, it tolerates full shade.
How much space does Japanese sedge need?
At maturity 0.3–0.4 m wide and 0.3–0.45 m tall; recommended spacing 35 cm.
Does Japanese sedge survive winter outdoors?
Yes, without protection, hardy to −26 °C.
Where the data comes from
We compared the data in 8 expert sources. Last checked 28 September 2026.
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