Plant guide
クワズイモ
Watering rhythm
Every 7–10 days
Alocasia odora is a large tropical houseplant native to Southeast Asia. It produces beautiful heart-shaped leaves on climbing stems and is quite forgiving for beginners. While it prefers warmer conditions, it's relatively easy to care for indoors and will grow vigorously in a warm environment.
Bright, indirect light is ideal—avoid direct sun exposure. The plant does well at temperatures of 15°C and above, with growth noticeably improved at 20°C or higher. Maintaining humidity above 50% helps the foliage stay lush and healthy. Keep it away from direct air-conditioning drafts for best results.
Light and temperature change a plant's metabolism, so the ideal cadence shifts with the seasons.
Spring
Every 6–9 days
Summer
Every 5–8 days
Autumn
Every 7–10 days
Winter
Every 12–16 days
Water thoroughly when the top of the soil feels dry, allowing water to drain freely from the bottom of the pot. Always empty any water that collects in the saucer to prevent standing water. The key to avoiding root rot is checking the soil moisture with your finger before watering. During winter, reduce watering frequency.
Quick lookup from symptom to likely cause and action.
| Symptom | Likely cause | What to try |
|---|---|---|
| Leaves turning yellow | Overwatering leading to root rot, or insufficient light. | Check the soil moisture level; if root rot is present, consider repotting the plant. Moving it to a brighter location can also help. |
| Stems becoming soft | Root rot developing from cold temperatures combined with excessive moisture. | Stop watering immediately and move the plant to a warm location with good air circulation. If the problem persists, try propagating healthy stem sections. |
| Leaves becoming smaller or growth slowing down | Insufficient light or the pot becoming too small and root-bound. | Move the plant to a brighter spot. If you suspect root-binding, repot it into a slightly larger container in spring. |
| Yellow spots appearing on leaves | Spider mites or scale insects feeding on the plant. | Check the underside of leaves and wipe away any pests with a damp cloth. If the problem continues, use a horticultural insecticide. |
| Leaves drooping or wilting | Underwatering, sudden temperature fluctuations, or exposure to air-conditioning drafts. | Check soil moisture and water as needed. Review the plant's location to ensure it's not in direct air-conditioning airflow. |
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