Optimal lighting is crucial for Rex Begonias, as they prefer bright, indirect light year-round but can tolerate less than other begonias as they are not aggressive bloomers. Providing fluorescent lights can also foster healthy growth.
For soil, choose a fast-draining and airy variety to accommodate the plant's needs.
Regular watering is necessary for Rex Begonias, but beware of overwatering and aim for evenly moist soil.
Moderate temperatures and humidity of around 50 percent are ideal for these foliage begonias, similar to understory ferns. Frozen temperatures and lack of light may result in slower growth or dormancy.
Liquid fertilizer can be used at quarter strength weekly or half strength bi-weekly.
