Begonias are lovely flowers that are well-suited to shady garden spaces, underneath trees, or in containers placed in areas of your porch, patio, or yard that offer protection from afternoon sunlight. They grow best in light, fertile, well-drained soil and will not survive when waterlogged. If you notice water puddles 5–6 hours after a hard rain, scout out another site or amend the soil with organic material such as compost, finely ground bark, or composted manure.