Light: Your Watermelon Peperomia will be happiest in medium to bright light. Do not allow the direct sun to hit the foliage. If given too much light, the colors and patterns will fade. If not enough light, the leaves may become darker green.
Water: Water thoroughly when the top inch to two inches of soil is dry to the touch. Allow the soil to dry out a bit between waterings. Always keep an eye on your plant–if the leaves droop or feel a bit thin, it may also be time to water. They enjoy being being humid too!