Plant guide
クテナンテ
Watering rhythm
Every 3–5 days
Ctenanthe is a tropical plant native to Brazil, prized for its striking white and green patterned foliage. Its slender, elegant leaves make it a popular choice for interior décor. It's a hardy, easy-to-grow plant that's well-suited to beginners. It thrives in warm environments with good humidity.
Bright indirect light is ideal—avoid direct sun. Aim for temperatures between 15–25°C, and keep it away from anything colder than 10°C. Maintain humidity around 50–70%, and position it where it won't be exposed to direct air-conditioning drafts.
Light and temperature change a plant's metabolism, so the ideal cadence shifts with the seasons.
Spring
Every 2–4 days
Summer
Every 2–4 days
Autumn
Every 3–5 days
Winter
Every 5–7 days
Water when the soil surface feels lightly dry. A simple test: insert your finger about 1 cm into the soil—if it feels dry, it's time to water. Always empty any water that collects in the saucer to prevent root rot. Avoid letting the soil stay constantly wet. Misting the leaves occasionally is a nice bonus.
Quick lookup from symptom to likely cause and action.
| Symptom | Likely cause | What to try |
|---|---|---|
| Leaves curling or wilting | The air is too dry or the plant isn't getting enough water. Ctenanthe loves humidity, and dry conditions cause it stress. | Mist the entire plant with a spray bottle to raise humidity. Check the soil moisture too—if it's dry, water it. Daily misting works wonders. |
| Base of the plant rotting with a bad smell | Too much watering or poor-draining soil is keeping the roots constantly wet. | Take the plant out of its pot and inspect the roots. Trim away any rotted roots with clean scissors. Repot in fresh soil and reduce watering frequency going forward. |
| Leaves turning yellow | This could be natural aging and leaf drop, or caused by excess humidity or fertilizer burn. Lower leaves yellowing as the plant grows is normal. | It's fine to remove yellowing lower leaves. If the whole plant is turning yellow, improve air circulation and use a weaker fertilizer solution. |
| Leaves look whitish with sooty, dust-like marks | Spider mites or scale insects have appeared. These pests thrive in dry conditions. | Gently wipe affected areas with a soft cloth and mist the plant to raise humidity. If the problem persists, consider using an insecticide. |
| New leaves aren't appearing, growth has stalled | The temperature may be too low, light may be insufficient, or the plant could be root-bound. | Keep temperatures at 15°C or above and move the plant to a brighter spot with indirect light. If it's been 1–2 years since the last repot, move it to a slightly larger pot in spring. |
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