Begonias are frequently grown in windowboxes or inon the windowsill. They flower from spring until autumn. A profusion of large of various colours – white, pink, red or yellow – is the reward for the relatively little care the plants require.
Before the first frost, cut off the top parts of the plant just above the tuber. Store the tubers in peat in a dark room or cellar, where the temperature does not drop below freezing point. In February, transfer the tubers into sand so they will put out. Plant them in and transfer to a windowbox in late May. Water liberally and once a week with a solution of compound or organic fertilizer. Propagate by old tubers into pieces – each piece must have an eye.