There are many begonia varieties to choose from, with over 2,000 species in the genus and thousands more hybrids and cultivars. Below is a breakdown of the four basic types of begonias to help you choose one best suited for your conditions and location. Learn how to plant, grow, and care for begonia plants—indoors and outdoors! From potting to watering to cultivation. This comprehensive guide covers everything you need to know about begonia plant care, from growing conditions to propagation and pest control. All you need to know about growing and caring for colourful begonias in the garden. This article has been checked for horticultural accuracy by Oliver Parsons. Begonias are flamboyant, mostly tender perennials that are used in bedding, pot and hanging basket displays.