How to Care for Acorus gramineus (Japanese Sweet Flag)

Korean name: 석창포

Acorus gramineus is an aquatic or semi-aquatic plant with long, grass-like leaves. The leaves are dark green and its flowers are small and inconspicuous. It is well-suited for aquariums and wet environments.

Key facts

• Category: Aquatic plant
• Difficulty: Easy
• Where to keep: indoors or outdoors
• Native to: East Asia (Korea, Japan, China)
• Growth rate: Moderate
• Pets: Mildly toxic, so keep pets from chewing on it.
• Traits: aquatic plant, aquarium use, moisture loving, shade tolerant, easy care
• Also known as: Japanese Sweet Flag, Grass-leaved Sweet Flag

Care Guide

• Light: Thrives in partial shade to shade.
• Watering: Keep the soil or environment consistently moist.
• Soil: Suitable for wet soil or aquatic settings.
• Humidity: Prefers high humidity environments.
• Temperature: 15~25°C
• Fertilizer: Apply mild fertilizer seasonally.

Common questions

How often should you water Acorus gramineus?

Keep the soil or environment consistently moist. Roughly every 7 days is the baseline; adjust for the season and the spot it sits in.

Where should you keep Acorus gramineus?

It likes Thrives in partial shade to shade.. You can grow it indoors or outdoors. Use Suitable for wet soil or aquatic settings..

Is Acorus gramineus safe around pets?

Mildly toxic, so keep pets from chewing on it.

Is Acorus gramineus good for beginners?

Difficulty: Easy. It is forgiving enough for a first plant. Keep it around 15~25°C. Humidity: Prefers high humidity environments.. Fertilise Apply mild fertilizer seasonally..