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Carex oshimensis
Japanese sedge
This elegant, evergreen sedge forms dense, arching clumps of fine, glossy green foliage that add year-round structure to the garden....
9cm pot
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3 × 9cm pots
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1
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Plant description
This elegant, evergreen sedge forms dense, arching clumps of fine, glossy green foliage that add year-round structure to the garden. Carex oshimensis displays a tidy, mounded habit, making it ideal for borders, containers, or as low-maintenance ground cover.
From mid to late spring, slender stems carry subtle brown flower spikes that sit just above the leaves, adding delicate texture without dominating the foliage. Its fine-textured blades catch light beautifully, creating movement in wind or rain. Low-maintenance and durable, it requires only modest care once established.
Works well in mixed perennial beds, woodland-style plantings, or contemporary gardens, and is perfect for gardeners seeking an attractive, hardy, and versatile ornamental grass alternative.
From mid to late spring, slender stems carry subtle brown flower spikes that sit just above the leaves, adding delicate texture without dominating the foliage. Its fine-textured blades catch light beautifully, creating movement in wind or rain. Low-maintenance and durable, it requires only modest care once established.
Works well in mixed perennial beds, woodland-style plantings, or contemporary gardens, and is perfect for gardeners seeking an attractive, hardy, and versatile ornamental grass alternative.
Eventual height & spread
Flowering period
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Plant features
Position
Full sun / light shade
Rate of growth
Average
Soil
Moderately fertile, moist, well-drained soil
Hardiness
Fully hardy
How to care for Carex oshimensis:
Plant Carex in well-drained soil, ideally enriched with organic matter, and choose a spot in full sun or light shade. Space plants to allow for their mature size and water regularly until established. Feed during the growing season and lift and divide crowded clumps in early spring to maintain vigour.
Most evergreen and semi-evergreen Carex don’t need cutting back in the the traditional sense. Instead, in late winter or early spring, just comb through the plant with your fingers or a rake to remove any dead or tatty foliage. If the plant looks untidy or has suffered winter damage, you can lightly trim back the worst leaves, but avoid hard pruning as it can spoil the natural shape and regrowth is quite slow.
Most evergreen and semi-evergreen Carex don’t need cutting back in the the traditional sense. Instead, in late winter or early spring, just comb through the plant with your fingers or a rake to remove any dead or tatty foliage. If the plant looks untidy or has suffered winter damage, you can lightly trim back the worst leaves, but avoid hard pruning as it can spoil the natural shape and regrowth is quite slow.
