How Often to Water a Begonia

Begonia rex-cultorum · Difficulty: Moderate

Flowering ☠️ Toxic to cats & dogs (highest concentration of toxins in the underground tubers)

☀️ Summer / active growth Every 6-8 days

❄️ Winter / dormant Every 10-14 days

Care Snapshot

Light	Bright indirect light
Soil	Light, well-draining potting mix
Humidity	Prefers moderate to high humidity
Temperature	18-24°C (65-75°F)
Pet Safety	☠️ Toxic to cats & dogs (highest concentration of toxins in the underground tubers)

Want a personalized schedule based on your pot size and light? Try the free watering calculator.

Soft, mushy stems and powdery mildew-like spots on leaves that stay wet too often point to overwatering.

Leaves wilt and feel dry and papery at the edges when the plant has gone too long without water.

Begonias dislike getting their leaves wet, which can encourage fungal spots regardless of season - always water at the soil level.

Water in the morning so any splashed leaves have all day to dry, reducing the risk of fungal leaf spot.

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