Plant guide
ユーカリ
Watering rhythm
Every 5–7 days
A tree native to Australia, prized for its silvery-green, delicate foliage and fresh, invigorating scent. Eucalyptus is fairly hardy and straightforward to care for. It loves bright light and thrives in well-ventilated spaces. You'll enjoy its naturally graceful form as it grows.
Eucalyptus wants a bright spot—ideally a sunny windowsill with direct sunlight. Keep temperatures above 10°C, though 15°C or higher will keep it happier and more stable. It prefers low humidity, so prioritize good air circulation over anything else. Avoid placing it in direct air-conditioning drafts.
Light and temperature change a plant's metabolism, so the ideal cadence shifts with the seasons.
Spring
Every 5–7 days
Summer
Every 4–6 days
Autumn
Every 6–8 days
Winter
Every 10–14 days
Water when the soil surface feels dry, but be cautious: eucalyptus really dislikes sitting in moisture. The key is to water thoroughly until it drains from the bottom, then let the soil dry out completely before watering again. Empty any water that collects in the saucer promptly—don't let it sit. Skip the misting; this plant doesn't need it.
Quick lookup from symptom to likely cause and action.
| Symptom | Likely cause | What to try |
|---|---|---|
| Leaves turning yellow and dropping | Usually caused by prolonged overwatering, which can lead to root rot. | Cut back on watering frequency and only water once you've confirmed the soil is dry. If needed, consider repotting into a pot with better-draining soil. |
| Leaves becoming crispy and brown | Either the air around it is too dry, or the plant is root-bound and can't absorb water properly. | Maintain good airflow while gently raising humidity in the surrounding area. If the plant is root-bound, move it up to a slightly larger pot. |
| Stems growing thin and leggy | A sign that light is insufficient. Weak, stretched growth happens when the plant isn't getting enough brightness. | Move it to the brightest spot possible—preferably a window with direct sun. Trim it back to shape while you improve its light conditions. |
| White, powdery coating on leaves | Powdery mildew, a fungal issue that thrives in warm, humid conditions. | Remove affected leaves and improve air circulation around the plant. For stubborn cases, spray with diluted vinegar solution or use a commercial fungicide for houseplants. |
| Visible insects or sticky residue on leaves | Scale insects or aphids may be feeding on your plant. | Gently scrub off any bugs you see with an old toothbrush, and check undersides of leaves carefully. Use a houseplant insecticide if the infestation is significant. |
Register this plant and track its watering with Green Logs
Add Eucalyptus to my plants