The Dieffenbachia Star Bright a captivating cultivar of the Dieffenbachia plant species is a real showstopper with its unique variegated leaves that feature striking green and yellow patterns occasionally embellished with white streaks. This variety along with other Dieffenbachia plants is native to South America and the Caribbean. It s an easy indoor plant that can grow up to 4 feet tall. Grow this houseplant in bright indirect sunlight with well-draining soil. Water when the top of the soil is dry.