Calathea

Calathea key facts

Growing Difficulty

Intermediate

Lifespan

5+ years

Size

30-80cm

Temperature

15〜28℃

Humidity

50〜80%

Placement

Bright shade. Direct sun causes leaf burn

Watering

Keep soil consistently slightly moist

Humidity

Prefers high humidity. Maintain 50%+

Temperature

Above 15°C. Cold-sensitive

Notes

Leaf tips dry easily. Avoid dry air and chlorinated water

About Calathea

Calathea is a perennial plant native to the tropical rainforests of Central and South America, particularly Brazil, and belongs to the family Marantaceae. Its name derives from the Greek word for "basket," reflecting the plant's long history of having its leaves used in weaving. The defining appeal of Calathea lies in its strikingly patterned foliage — geometric and painterly combinations of green, white, deep purple, and cream that vary dramatically across the many cultivated varieties. Many varieties also feature purple undersides, adding a layered visual effect that shifts with the angle of light. The plant's nyctinastic movement — folding its leaves upward in the evening and reopening them by morning — gives it a lively, almost animated personality unlike most houseplants. While Calathea does require higher humidity, indirect light, and careful watering, making it more suitable for attentive growers, the reward is the daily pleasure of observing subtle changes in its living, breathing leaves. It is a distinctive houseplant that blends decorative beauty with a tangible sense of vitality.

7 things to know before growing Calathea

1. 1Avoid Direct Sunlight

   Direct sunlight causes leaf scorch and fades Calathea's distinctive patterns. A bright spot away from direct sun — such as near a window with a sheer curtain — works best. East- or north-facing windowsills provide suitable light conditions.

2. 2High Humidity Is Essential

   Calathea thrives in humidity around 60–70%; dry air causes the leaf tips to brown and crisp. Placing it near a humidifier or setting the pot on a tray of moist gravel helps maintain moisture levels. Misting the leaves can also help, but avoid leaving standing water on the foliage.

3. 3Water Quality Matters

   Calathea can be sensitive to fluoride and chlorine in tap water, which may cause leaf tip damage over time. Using water left overnight to off-gas, filtered water, rainwater, or soft water helps keep the foliage healthy.

4. 4Don't Let Soil Dry Out

   Water thoroughly once the top of the soil feels dry, but ensure the pot drains well to prevent root rot. Maintaining consistently moist — not waterlogged — soil is the goal. Use a well-draining potting mix and a pot with drainage holes, and reduce watering slightly in winter.

5. 5Enjoy the Nyctinasty

   Calathea raises and closes its leaves at night, reopening them in the morning — a phenomenon called nyctinasty. This movement is a sign of a healthy plant and can also serve as an indicator of its light and moisture conditions. If the leaves stay closed during the day, consider adjusting its placement or watering routine.

6. 6Fertilize Lightly in Growing Season

   During the growing season from spring to summer, apply a diluted liquid fertilizer at half the recommended strength once or twice a month. Over-fertilizing can damage roots and foliage, so err on the side of less. Withhold fertilizer during the dormant period in autumn and winter.

7. 7Repot Every Two Years

   When roots begin to emerge from the drainage holes or water drains poorly, it is time to repot. Move to a pot one size larger in spring, handling the roots gently to minimize stress. After repotting, keep the plant out of direct sun for a few days while it adjusts to its new container.

Frequently asked questions about Calathea

Q.Why are the tips of my Calathea's leaves turning brown?

A.The most common cause is low humidity. Using a humidifier or misting the leaves regularly often resolves the issue. Chlorine in tap water or over-fertilizing can also contribute to browning tips.

Q.How often should I water my Calathea?

A.Water thoroughly once the top 2–3 cm of soil feels dry. The frequency varies by season and room temperature — typically once or twice a week in summer and about once a week in winter.

Q.Can Calathea grow in a room with low light?

A.Calathea prefers indirect light and avoids harsh sun, so it adapts reasonably well to lower-light rooms. However, insufficient light may cause the leaf patterns to fade and slow overall growth.

Q.My Calathea's leaves stopped moving at night. Is something wrong?

A.When the sleep movement stops, it often signals insufficient light, a root-bound pot, or overall stress. Try adjusting the plant's position to improve light exposure, and consider repotting or fertilizing if needed.

Q.How should I care for Calathea in winter?

A.Calathea is sensitive to cold and should be kept above 10°C (50°F). Be mindful of the drying effect of indoor heating and maintain humidity. During winter, reduce watering frequency and hold off on fertilizing as growth naturally slows.

Handy Growing Tools for Calathea

Learn more about Calathea in the encyclopedia

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