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Acorus gramineus · Acoraceae

Japanese Sweet Flag

✅ Pet-friendlyIt is a perennial plant, remaining green throughout the year.20 to 40 cm
Partial shadeAbundant watering; keep soil moist.EasyWithstands light frosts down to minus 5 degrees Celsius.

Description & origin

Acorus gramineus is a perennial herbaceous plant with narrow, variegated leaves. It is ideal for humid environments and can be grown both indoors and outdoors. Its green foliage with yellow variations adds a touch of color to any space.

Size

Remains compact, ideal for small spaces.

Foliage

Evergreen foliage that maintains color year-round.

Flowering

This species does not produce flowers in domestic cultivation.

Detailed care

Light

Prefers partial shade but tolerates some sun exposure.

Soil

Thrives in rich, well-drained soils but tolerates waterlogged conditions.

Watering

Requires abundant watering, keeping the soil constantly moist.

Temperature

Prefers mild temperatures but tolerates light frosts.

Fertilising

Fertilize monthly during spring and summer with a balanced fertilizer.

Repotting

Repot when roots fill the pot, preferably in spring.

Pruning

Remove dry or damaged leaves to keep the plant healthy.

Propagation

Easily propagated by division of rhizomes in spring.

Common problems

Yellowing leaves

May be caused by excessive sun or lack of water.

Slow growth

Usually due to lack of nutrients or insufficient light.

Root rot

Occurs in poorly drained or overwatered soils.

Uses & curiosities

In the garden

  • Water gardens
  • Borders
  • Decorative pots

Other uses

Ideal for humid environments and interior decoration.

Did you know…

This plant is often used in water gardens due to its tolerance to waterlogged soils.