Plant guide
アロカシア
Watering rhythm
Every 5–7 days
Alocasia is a tropical foliage plant native to Asia, prized for its bold, impressive leaves. The arrow-shaped foliage and rich deep green color are its standout features. It appreciates humidity and prefers warm conditions, making it a surprisingly beginner-friendly choice.
Bright indirect light is ideal—avoid direct sun. Keep temperatures at 18°C or above, with 20°C or higher being optimal. Aim for humidity levels between 50–70%, and do your best to prevent the air from becoming too dry.
Light and temperature change a plant's metabolism, so the ideal cadence shifts with the seasons.
Spring
Every 4–6 days
Summer
Every 4–5 days
Autumn
Every 5–7 days
Winter
Every 8–12 days
Water thoroughly once the soil surface feels dry, pouring until water drains from the bottom of the pot. That said, avoid keeping the soil constantly wet to prevent root rot. Your Alocasia also enjoys misting—a light spray on the leaves a few times a week will make it happy.
Quick lookup from symptom to likely cause and action.
| Symptom | Likely cause | What to try |
|---|---|---|
| Leaves turning yellow | Overwatering is likely, or the plant may be receiving too much fertilizer. | Check your pot's drainage, and if the soil stays wet, consider repotting. For now, ease back on watering. |
| Leaf edges browning and crispy | The air is probably too dry, or the roots may be crowded and unable to absorb water efficiently. | Mist the entire plant daily to raise humidity. If it's time to repot, fresh potting soil will help. |
| No new leaves appearing | Insufficient light, cool temperatures, or low nutrient levels. | Move the plant to a brighter spot and keep it above 20°C. During spring and summer, feed with a slow-release fertilizer once a month. |
| Sticky residue on the leaves | Likely pest infestation—spider mites, mealybugs, or scale insects. | Gently wipe affected leaves and use an insecticide spray if needed. Check your plant regularly to catch problems early. |
| Roots protruding from the pot | The plant has outgrown its pot and the soil can no longer absorb water properly. | Repot into a container one size larger, ideally in spring or early summer, using fresh indoor plant potting mix. |
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