Water a Xanadu thoroughly until the water drains out the drip holes in the bottom of the pot, and then allow the top 50% of the soil to dry out before watering again. Leaves turn yellow if the soil stays too wet. A Xanadu grows more slowly in the winter and requires less water.
Philodendron xanadu care requirements include moderate indirect light and well-draining soil that never dries out or remains soggy. Moderate to high humidity, temperatures of 65ºF (18ºC) to 85ºF (29ºC), and a little fertilizer every 2-4 weeks over the growing season will help your plant to thrive.
Philodendron 'Xanadu' likes a little more light than most philodendrons in order to maintain its compact growth habit. Bright, indirect light will suit this plant well, and even a little direct sun, especially morning sun, will be good for this plant.
Philodendron xanadu likes warm temperatures above 55°F (13°C) and does best between 65ºF (18ºC) and 85ºF (29ºC). The plant will die back in colder temperatures but may eventually recover as long as they don't freeze.
To give the plant a headstart in its new quarters, repot in late winter or early spring before new leaves begin to emerge. A Philodendron xanadu should be tightly potted so that there isn't much empty soil that could stay too moist. A pot that's two to three inches larger than their root ball is adequate.