Cogon grass (Imperata cylindrica)
Care, watering, light and tips for Cogon grass on Floravia.
Quick facts
- Family: Poaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
About Cogon grass
Imperata cylindrica, commonly known as Ouniassi or "Red Baron," is a perennial ornamental grass prized for its distinctive foliage. Its leaves, initially green, develop bright red tips that intensify with direct sunlight, creating a spectacular visual effect. It is ideal for borders, mass plantings, or as an accent in rock gardens, adding color and texture.
Native range
Tropical and subtropical Asia, Africa, and Australia
Care tips
It requires full sun exposure for its red colors to be most vibrant; in shade, the foliage tends to be greener. Watering should be regular, keeping the substrate moist but not waterlogged, especially in warm climates. It prefers well-drained and slightly acidic soils. A common mistake is planting it in excessive shade, which results in a loss of its characteristic red coloration.
How to save a dying Cogon grass
- Warning signs
- Wilted, yellowing, or browning leaves, stunted growth.
- First aid
- Replant in full sun with well-draining soil. Water only when topsoil is dry.
- What kills it
- Too much shade and waterlogged soil. It's a full-sun, drought-tolerant plant.
- Can it be saved?
- Yes, if roots aren't rotted. It's very resilient and recovers with proper conditions.