Begonia grow best in small, cylindrical pots. The pot mixture must include loose soil, coco peat and cow dung cakes in the ratio of 8:1:1. Dig a hole in the middle of this mixture and plant the begonia by applying fine loose soil over it. Irrigate it without wetting the leaves. Rex, a popular begonia variety, can withstand water logging. It is advised to move the pot to a warm region.
Hanging begonia varieties are best grown in hanging pots after the proper development of leaves and stem.
The blooms of Rex, should be plucked to maintain healthy, attractive leaves. Organic manures like cattle waste, cow dung cakes, and sesame cakes can be applied once in a month for better results. Furadan powder can be sprayed after planting, to control pest attack. Plant rooting can be avoided by changing the pot mixture every year. Care must be taken to prevent black spot on leaves. If the leaves are not large enough then it is clear that the plant is receiving more sunlight than actually required.