Rex begonias (Begonia rex) are tropical plants, prized for their colorfully patterned and intriguingly shaped leaves. Although they are at home in a shady garden, they are also popular as houseplants. Sometimes called painted-leaf begonias or fancy-leaf begonias, these plants are known for their showy, sometimes jaw-dropping leaf coloration.
Rex begonias like bright, indirect light year-round. Because they are not aggressive bloomers, they can tolerate less light than other begonias and will thrive under fluorescent lights.
Rex begonias require regular water, but be careful not to over-water them. They also thrive on humidity but don't like direct misting, which encourages powdery mildew. Let the soil surface become dry to the touch before watering.
SOIL & POTTING
Use a porous potting mix in a relatively shallow pot, and feed the plant regularly. Keep the plant moist, but avoid overwatering. Be especially careful of directly spraying the leaves, as standing water will encourage powdery mildew, which is a disaster on a plant that is cultivated for its beautiful foliage.
The vast majority of begonias offered in the trade are hybrids and thus cannot be accurately propagated from seed. Rhizomatous begonias such as the rex begonia can be easily propagated by rhizome division during repotting. Almost all begonia species will readily sprout from leaf-tip cuttings. A rooting hormone can help the cuttings sprout.
These plants can be toxic to cats and dogs if eaten.
These plants are great air purifiers.
A single Begonia Rex in 15cm plastic nursery pot.