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Grass · Cyperaceae family

Evergold Sedge

Carex oshimensis

Full sun to part shade 0.3–0.45 m × 0.3–0.46 m to −29 °C

In short a 10-second read

SunFull sun to part shade
Size0.3–0.45 m
spacing 40 cm
PlantingMarch–May, September–October
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun to part shade, in average to moist soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
average to moisthumus-richloamy

Watering

keep the soil evenly moistless when it rains

Frost

−29 °C
no winter protectiongreen in winter too

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

50 cm1 m1.5 m0.3–0.45 mspread 0.3–0.46 m
0.3–0.45 m× spread 0.3–0.46 m

Plant 40 cm apart.

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

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Planting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
Planting
Now, in October: a good time for planting (container plant).
JanFebMarAprMayJunJulAugSepOctNovDec

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–May, September–October

Feeding

Nutrition.

No feeding

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

Aphids

Aphids

Aphidoidea
pestsource covers the whole genus
More about this problem

What you will see

Colonies on shoot tips and young leaves, sticky honeydew.

When to look

Spring – summer

How to protect

  1. Prevention
    • Check plants often and act early.
    • Encourage ladybirds, hoverflies, ground beetles and ichneumon wasps.
  2. By hand spring and summerSquash colonies with your fingers; wipe off honeydew with a damp cloth.
  3. Biological April to JuneLeave natural enemies to work; populations often catch up in spring.
Aphidspest · spring – summer

What you will see

Colonies on shoot tips and young leaves, sticky honeydew.

When to look

Spring – summer

How to protect

  1. Prevention
    • Check plants often and act early.
    • Encourage ladybirds, hoverflies, ground beetles and ichneumon wasps.
  2. By hand spring and summerSquash colonies with your fingers; wipe off honeydew with a damp cloth.
  3. Biological April to JuneLeave natural enemies to work; populations often catch up in spring.
More about this problem
Rusts

Rusts

diseasesource covers the whole genus
More about this problem

What you will see

Small orange-brown pustules on the underside of leaves.

How to protect

  1. Prevention
    • Allow space and air flow; do not plant too densely.
    • Do not water the leaves; avoid prolonged wetness.
  2. By hand once noticedCut off and destroy affected leaves.
Rustsdisease

What you will see

Small orange-brown pustules on the underside of leaves.

How to protect

  1. Prevention
    • Allow space and air flow; do not plant too densely.
    • Do not water the leaves; avoid prolonged wetness.
  2. By hand once noticedCut off and destroy affected leaves.
More about this problem
Sources (3)

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.

Ready-made Studio combinations with this plant

Click a combination — the Studio opens a new raised bed with it already planted.

Frequently asked

Quick answers.

Does Evergold Sedge tolerate shade?

It tolerates part shade (3–6 hours of sun), but not full shade.

How much space does Evergold Sedge need?

At maturity 0.3–0.46 m wide and 0.3–0.45 m tall; recommended spacing 40 cm.

Aphids — what can you do?

Check plants often and act early. Squash colonies with your fingers; wipe off honeydew with a damp cloth.

Rusts — what can you do?

Allow space and air flow; do not plant too densely. Cut off and destroy affected leaves.

Sources (16) Checked 24 October 2026

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