Begonias are not hardy to cold, so before frost, potted plants should be moved to the room for maintenance to prevent frostbite. If the indoor temperature can be maintained above 15 ℃, potted begonias can continue to bloom.
Begonia in the four seasons should be watered in the morning and evening of summer. In winter, it's best to water around noon, when the light is the strongest. Don't water too much, or the water in the soil will lead to rotten roots, yellow leaves and even wilt.
Begonia in four seasons likes light and warm environment, so it should be placed in a place with sufficient light and ventilation. If the light is not enough, it will affect the growth and development, and the color is not bright.
During the growth period of Begonia, the thin liquid fertilizer should be applied every 10 days or so, and the fertilizer should be mainly P-K fertilizer. The growth of Begonia is slow in winter and summer, so the fertilization should be stopped or minimized, so as to avoid weakening the heat and cold resistance of stems and leaves and causing rot.
Begonia has high growth resistance, so there are not many diseases and insect pests, among which the leaf roller moth is one of them. When the disease occurs, it can be artificially attracted by lights to catch, or seriously it can be sprayed with Omethoate for dilution.
