Once shoots are showing, development becomes more rapid. Give maximum light but shade from strong direct midday sun. Water regularly never allowing the soil to become dry. An application of a good liquid plant food will improve growth. Begonias thrive in semi-shade and must not be subjected to the midday sun.
Begonias dislike dry conditions, so water generously, especially during periods of hot weather.
Every two weeks a well balanced plant food should be given. Remove all wilted leaves and flowers to encourage flowering throughout the summer months. In the summer heat and wind, hanging plants dry out very fast. Remove them from their hooks the day before you go on vacation. Cut back trailing plants by half.