Sun or Shade
Begonias are tender annuals, and need to be planted after the frost has ended in the Spring. They love warmer temperatures and can be damaged when it dips below 50’F.
Plant both annual and perennial begonia types in partial shade, with moist, well-drained soil high in organic content. They need bright light to flower, but too much direct sunlight may scorch the leaves. Ideally, choose a site with morning sun and afternoon shade or dappled sunlight beneath an open tree canopy. Bronze leaf wax begonias offer the best sun tolerance, while greenleaf plants need more protection.