Carex oshimensis
Japanese sedge
Durable, densely tufted, clump-forming, evergreen perennial sedge, 30-40cm tall, with fine-textured, glossy green foliage. Carries inconspicuous brown flower spikes on stems to 15cm long, within the foliage, in mid and late spring
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Brown | Green | ||
---|---|---|---|---|
Summer | Green | |||
Autumn | Green | |||
Winter | Green |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Cyperaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Clump forming, Tufted
- Genus
Carex can be deciduous or evergreen, rhizomatous or tufted perennials, with triangular stems bearing linear or strap-shaped leaves and short or long spikes of tiny green or brown flowers
- Name status
Correct
- Plant range
- Japan
How to grow
Cultivation
Grow in fertile moist but well-drained soil in full sun or part shade. See ornamental grasses cultivation
Propagation
Propagate by seed in early spring or by division in mid spring to early summer
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Gravel garden
- Patio and container plants
- Low Maintenance
- Flower borders and beds
- Garden edging
Pruning
Cut out any dead leaves on evergreen species in summer
Pests
May be susceptible to aphids
Diseases
Generally disease-free
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