Plant guide
クラッスラ
Watering rhythm
Every 14–21 days
Crassula is a succulent native to South Africa, prized for its thick, fleshy leaves and compact growth habit. It's wonderfully forgiving for beginners—drought-tolerant and requiring minimal watering. You can grow it year-round in most climates, with the exception of very cold regions.
Crassula loves bright light, though it's best to keep it out of intense direct sun. A sunny windowsill indoors is ideal. Aim for temperatures between 5–25°C, and remember that this plant prefers low humidity and good air circulation. During winter, keep temperatures at 5°C or above.
Light and temperature change a plant's metabolism, so the ideal cadence shifts with the seasons.
Spring
Every 10–16 days
Summer
Every 10–16 days
Autumn
Every 14–21 days
Winter
Every 25–35 days
Water thoroughly when the soil surface feels dry—let water drain completely out of the pot's base. Since Crassula is a succulent, overwatering is the enemy and can lead to root rot. Wait until the soil is completely dry before watering again, rather than watering on a schedule. Always empty any water that collects in the saucer.
Quick lookup from symptom to likely cause and action.
| Symptom | Likely cause | What to try |
|---|---|---|
| Leaves wilt and become soft | Too much water is causing the roots to rot. Succulents are naturally drought-tolerant, and excessive watering is one of the quickest ways to kill them. | Stop watering immediately and move the plant to a well-ventilated spot. Check that the drainage hole isn't blocked, and consider repotting if needed. |
| Leaves look thin and shriveled | The plant has gone without water for too long, and the leaves have lost their moisture. While Crassula is tough, severe dehydration can make recovery difficult. | Water gently and give it 1–2 weeks to bounce back. If recovery doesn't happen, you can always remove healthy leaves and propagate them as leaf cuttings. |
| Stems have turned black and are rotting | High humidity combined with fungal or bacterial decay—usually triggered by poor air circulation. | Use a clean knife to remove the affected parts and move the plant to somewhere with better airflow. If rot spreads, you can propagate healthy sections as cuttings to start fresh. |
| Leaves fade in color and the plant becomes tall and leggy | Insufficient light. The plant is stretching toward any available light source, resulting in thin, elongated stems. Darker indoor spots don't provide enough light. | Move it to a brighter windowsill. You should see improvement within 1–2 weeks. Feel free to prune back overly long stems to encourage a more compact shape. |
| Tiny insects are visible on the plant and leaves are yellowing | Common pests like scale insects or spider mites, which are attracted to succulents. Poor air circulation or overly dry conditions can make infestations more likely. | Gently wipe the leaves with a damp cloth to remove the insects. If the problem persists, an insecticidal spray can be effective. Check your plant regularly to catch any issues early. |
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