The Philodendron âXanaduâ, sometimes referred to as Philodendron âWinterbournâ, is a large compact easy to grow plant. Each shiny, green, leathery leaf has 15-20 distinct lobes. A Xanadu is often wider than it is tall, reaching a height of 2-4ft. and a width of 3-5ft in ideal conditions. The leaves of this beautiful, exotic looking foliage plant can be as large as 16âł-18âł long and 7âł-14âł wide. Unlike many philodendrons, the Xanadu is an upright plant not a climber or vine. The best part is the older a Xanadu gets the better it looks.