Location and Soil: Hardy Begonias prefer a location with part shade or full shade. They grow well in well-draining soil rich in organic matter. They can tolerate a wide pH range but prefer slightly acidic soil. Planting: Plant the bulbs in spring, spacing them about a foot apart.

First of all it is important to note that overall, begonias perform best in light shade or part sun, that is 4-6 hours of morning sun and will do well in deeper shade, especially the tuberous Non-Stops and the flashy foliage types such as Rex begonias.

Begonia thrives in bright filtered light and outdoors in dappled shade, if your plant is receiving too much light the leaves will either yellow or look washed out, too little light and the plant will look sparse and stretched out, relocate your Begonia to a more optimal position but avoid low light or direct sun.

The most hardy to try is Begonia grandis subsp. evansiana AGM, which is hardy down to 0°C (32°F).