Begonia
Begonia rex
Showy houseplant grown primarily for its dramatic patterned leaves in silver, pink, burgundy, and green. Rex begonias have some of the most striking foliage of any indoor plant. Some varieties also produce delicate clusters of flowers.
Best rooms for begonia
Light requirements
Best near a window with filtered light — avoid harsh direct rays.
How to care for begonia
Bright indirect light brings out the best leaf colour. Water when the top 2cm of compost feels dry — avoid getting water on the leaves. High humidity helps; place on a pebble tray. Feed fortnightly spring-summer. Minimum 15°C. Pinch out leggy stems to keep compact.
Watering
Water when the top 2–3cm of compost feels dry. Roughly weekly.
Propagation
- Leaf cuttings
- Stem cuttings
- Division
Toxicity
Contains soluble calcium oxalates, most concentrated in the tubers. Causes oral irritation and vomiting if ingested by pets.
Common problems
- Powdery mildew in poor ventilation
- Leaf drop from cold draughts
- Root rot from sitting in water
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