Care for Begonia Rex

How to Care for Begonia Rex

To care for Begonia rex provide well-draining soil. Bright sunlight is best. Water once every seven days. Provide a temperature between 65-75°F (18-24°C). The humidity should be between 50-60%. Fertilize every three weeks using a diluted houseplant fertilizer at 1/2 strength.

How to Care for Begonia Rex
How to Care for Begonia Rex

Begonia rex soil

The ideal Begonia rex potting mix consists of peat moss, perlite, and vermiculite.

Rex begonia light

Bright indirect light.

Begonia rex watering schedule

Water every seven days. Use your index finger and water it once the top 1-inch of soil is dry.


The optimal temperature is 65-75°F (18-24°C).

Rex begonia humidity

Provide a humidity between 50-60%.


Fertilize every three weeks using a regular houseplant fertilizer. Use 1/2 of the recommended strength.

Begonia Rex Propagation

This plant can be propagated from leaves and by root propagation.


Use a flat pot, as the Rex Begonia doesn’t grow deep roots. It grows mostly horizontally.


Grows leaves up to 6 inches long.


Begonia rex is toxic for cats, dogs, and humans if ingested.

Common Problems


Overwatering is often caused by soil that is too dense. An overrated Begonia will get yellow leaves.


Underwatering leads to brown leave as well as dry leaf tips.

Root rot

Dense soil and overwatering often lead to root rot. Remove soft roots and rinse the healthy roots. Exchange the potting soil and disinfect the pot.

Crispy leaves

Crispy leave can be caused by infrequent watering as well as dry air. Increase the humidity using a humidifier or by putting plants together. You can also use a pebble try.

I hope these Begonia Rex care tips are helpful. Please contact me via Facebook or LinkedIn if you have any questions or suggestions.