Carex morrowii
Japanese sedge
At a glance
- Light
- Partial shade
- Pot size
- from 5 l
- Lifespan
- Perennial
- Hardiness
- Hardy
This description was machine-translated.
Description
The Japanese sedge is an evergreen grass suited to partial shade, bringing structure to garden beds all year round with its narrow, often white or yellow variegated leaves. It grows upright and dense, remaining compact between 20 and 40 cm tall, making it ideal as a groundcover under shrubs or as a solitary plant in a pot. Botanically it is Carex morrowii; in the garden we simply call it Japanese sedge. Cultivars such as 'Silver Sceptre' add fine accents with their cream‑white leaf margins even in shady corners where little else blooms. There is no expectation of flowering, as the beauty of this sedge lies in its foliage.
Care instructions
Plant your Japanese sedge best in spring or early autumn in loamy, evenly moist soil, as both waterlogging and prolonged drought are poorly tolerated. It prefers partial shade; direct midday sun can scorch the variegated leaves more quickly. Water regularly during dry summer weeks, especially in pots where the soil dries faster. In early spring, around early March (week 9 to 10), cut back old or brown leaves close to the ground to allow new shoots room. Every three to four years the clump can be divided, which keeps the plant vigorous and provides new planting sites for the garden.
The care notes were machine-translated from German.
Soil & site
Soil pH
Soil type
well-drained, moist, humus-rich, nutrient-rich
Japanese sedge likes it evenly moist, without waterlogging. Humus-rich, loose soil with good water retention suits it best. On heavy, compacted soils, a little compost is worthwhile to loosen them. It forgives short dry spells, but permanent dryness turns the leaf tips brown.
Feeding
Light feeder
As an undemanding grass-like plant, Japanese sedge needs hardly any additional nutrients. A thin application of compost in spring is entirely enough to support new growth. Lean growth is not a deficiency here, but the natural character of the plant.
Overwintering
Japanese sedge is sufficiently hardy and, as a semi-evergreen, stays green in winter. In harsh sites or when grown in a container, a layer of leaf mulch protects the roots from hard frost. Yellowed or brown leaves can be cut back in early spring before new growth.
Propagation
Methods
- Division
- From seed
The most reliable way is to divide Japanese sedge in spring, once dense clumps have formed. Dig out the root ball and divide it with a sharp spade into several strong pieces with their own roots. Replant the pieces straight away in moist, humus-rich soil and keep them constantly moist for the first few weeks. Sowing is possible, but it takes much longer to reach a handsome clump and often gives uneven results with variegated varieties.
For your garden
Grow Japanese sedge yourself
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