Begonia 'Superba Yellow' is an upright, double-flowered variety with large, ruffled blooms in a bright lemon-yellow hue. Blooming from late spring until frost, it thrives in partial shade to full shade and prefers rich, well-drained soil with consistent moisture. Growing 10 to 12 inches tall, its compact habit makes it ideal for containers, shaded borders, and garden beds. In colder climates, tubers should be lifted and stored indoors before winter to ensure a fresh display the following season.