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Grass · Poaceae family

Korean feather reed grass

Calamagrostis brachytricha

Full sun to part shade 0.7–1 m × 0.7–0.8 m to −23 °C

In short a 10-second read

SunFull sun to part shade
Size0.7–1 m
spacing 80 cm
PlantingMarch–April, 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 soil.

Sun

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

Soil

tolerates any pH
acidicneutralalkaline
averageloamyhumus-rich

Watering

keep the soil evenly moistless when it rains

Frost

−23 °C
no winter protectiondies back in winter, regrows in spring

How much space it takes

Mature size.

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

50 cm1 m1.5 m0.7–1 mspread 0.7–0.8 m
0.7–1 m× spread 0.7–0.8 m

Plant 80 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–April, September–October

What to plant now (October) full list in October (244) →

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.

What you will see

Small orange-brown pustules on the underside of leaves. Mostly in wet summers or with dense planting.

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. Mostly in wet summers or with dense planting.

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 (1)

Frequently asked

Quick answers.

Does Korean feather reed grass tolerate shade?

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

How much space does Korean feather reed grass need?

At maturity 0.7–0.8 m wide and 0.7–1 m tall; recommended spacing 80 cm.

Rusts — what can you do?

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

Sources (6) Checked 24 October 2026

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