Begonias are bushy, full and low-growing flowers that are perfect for semi-shady areas and hanging baskets. Most varieties available today to homeowners are hybrids with complex parentage from original varieties found in southern Africa and South America. The most popular types also have tuberous roots rising to reddish stems with bright green, waxy foliage and clusters of bright flowers and are propagated from leaf or leaf-chip cuttings. Caring for hybrid begonias is the same as caring for original varieties.
Ideally, the soil should be slightly damp at all times, but not too wet because begonias are very sensitive to overwatering and can easily develop root rot
Cane begonias need bright, indirect sunlight. Rhizomatous and rex begonias prefer a bit more shade. If leaves appear scorched, move your plant to a less sunny spot.
Applying a liquid houseplant fertilizer according to the package instructions every two weeks will encourage bigger leaves and blooms.
Plant begonias using a soilless potting mix in a pot with good drainage in the bottom. Begonias are particularly susceptible to root rot, so it can also be a good idea to add a layer pebbles or broken shards of old terracotta pots to the bottom for extra drainage.
begonias do best in moderate temperatures (60 to 70 degrees Fahrenheit) and moderately high humidity (around 50 percent). They cannot tolerate freezing