If their windowsill becomes too hot during the day, one or two layers of cheese cloth or a light linen curtain will provide adequate shade to reduce temperature. They should never be allowed to become completely dry. Watering is best performed early in the day to allow the foliage to become dry by nightfall. Cool temperatures and excessive moisture can easily lead to fungal and rot problems if water is allowed to stand in the leaf axils. In the home, an east, shaded south, or west window.
Less light is needed during winter months.
It is best to follow the plants natural requirements. Most phaius will do well in intermediate conditions that are found in most homes. When phaius is finished blooming the fun just begins. Cut the flower stalk at the base then cut the stalk above and below each segment. Place the cut segments on moist sphagnum moss and watch plants develop from the nodes.