It is a cultivar of the Begonia rex group, celebrated for its striking foliage. This variety features leaves with a distinctive reddish hue, often accompanied by intricate silver patterns and textures. The vivid red and silver combination creates a captivating and elegant appearance, making 'Red Bull' a popular choice among plant enthusiasts. Like other Begonia rex varieties, it thrives in bright, indirect light and requires consistently moist soil to maintain its lush and ornamental foliage. 'Red Bull' is a beguiling addition to indoor spaces, adding a touch of bold and exotic beauty to homes and offices.