Do Begonias Like Sun? 5 Types That Thrive in Lots of Light 

Double Delight is a new series of tuberous begonias with petal-packed blooms that cover the plants all summer. The double flowers come in subtle shades of pink, red, and yellow. They're lightly fragrant as well. The plants grow to just over a foot tall, making them a good choice for containers and hanging baskets.

Tips for Growing Begonias in Sun

Watering

Aside from a few species such as Begonia venosa, the vast majority of begonias require plenty of moisture to look their best. Avoid watering on a set schedule and instead water as needed when the soil feels dry. Desiccated begonia leaves will quickly shrivel and burn in the hot sun, requiring the plants to regrow new, healthy leaves.

Soil

For greater sun tolerance, plant begonias in loamy, organically enriched soils with a top dressing of compost to help retain moisture. The soil also should have excellent drainage to avoid root rot.

A high quality potting mix that contains a high organic content along with perlite or sand will be helpful for potted begonias. Be especially dutiful with regular watering when planting in soil mixes with a large amount of peat moss. Peat retains water when already moistened, but after drying out, it becomes hydrophobic and takes longer to reabsorb water once again.

Airflow

Begonias prefer lots of moisture, humidity, and warmth, but still air can create a breeding ground for disease or create a pocket of excessive heat. Remove weeds and other barriers to airflow, and place your begonias where they'll have enough space to allow for some air movement around them.

Container Types

Begonias thrive in containers and the ground alike, but some care should be taken when choosing a container for your plants. While unglazed terracotta pots are good options for most plants, their porous nature wicks moisture away from the soil. This cuts down on overwatering issues, which is what makes them especially great choices for growing cacti and succulents, but potted begonias growing in the sun need plenty of water. If the potting soil dries out too quickly in a terracotta pot, this could lead to stress and burning of your plant. Instead, go with plastic pots and containers that will help hold more moisture.