In the wintertime, they can even tolerate some direct sunlight and look great on a windowsill with a collection of winter-blooming plants (including their close cousin, the rieger begonia). Keep the plants at eye level so you can enjoy their unique appearance as much as you'd like. These plants can grow large and may develop slightly brittle stems along the way. Stake up larger plants to prevent damage to their canes as the foliage is highly attractive. Light Angel wing begonia plants like bright, indirect light year-round. They are not as sensitive to direct light as rex begonias, but cannot handle the direct sunlight of a wax begonia. If you don't want your plant to flower, a partial shade location will allow it to grow without producing blooms. Soil Plant your angel wing begonia in a soil mixture that is moist (but not soggy) and includes lots of organic matter. A soil that is slightly "heavy" in nature will allow the plant's vast root system to establish well, and support its tall stems properly. In order to ensure your plant's soil doesn't get soggy, you can house your angel wing begonia in a pot made from terracotta or clay to help wick away excess moisture. Water Angel wing begonias like to be kept consistently moist, and you can tell when they're lacking in water if the edge of their leaves begin to brown. Once the soil has dried about an inch from the surface, saturate the plant throughly and allow it to drain.