Begonia Rex 'Dew Drop' in 6 cm pot

Rex Begonias tend to prefer bright, indirect sunlight and they like to be constantly moist.  Water thoroughly when the top few inches of the soil feels dry but do not allow the roots to become waterlogged.  It is good practice to remove any dead or dying leaves, this will encourage good, healthy air-circulation and therefore avoid any risk of pests or disease.  They like at least 50% humidity, so it is a good idea to place in a tray with pebbles and water if not situated in a room with sufficient humidity, like a bathroom or kitchen.