Watermelon peperomia (Peperomia argyreia) is a stunning and super-trendy houseplant. It shows off beautiful tear-drop shaped green leaves with dramatic silver stripes. Red leaf stems (petioles) offer an attractive complement. 
Native to areas of South America, this small houseplant is perfect for well-lit desks and tabletops. It only grows about 8 to 12 inches tall, so it's also easy to feature on shelves and in large terrariums. Place watermelon peperomia in a spot where you can view it up close: in bright light, the silver variegation sparkles.