Water
Water your Philodendron abundantly when the top layer of soil dries 2-3 cm deep. If it is cool in the room in autumn and winter, reduce watering.
Light
Place your plant in an area of your home where it will receive bright, but not direct, sunlight for at least 8 hours a day. This could be a place in 1-2 meters from the window exposed to bright light, or just near the window which is not exposed to direct sunlight. You should better use grow lights to provide your plant with the right amount of light if you don't have a place with indirect bright light. Using grow lights is also essential during all the winter season for this plant as UV level is not enough during this period.
Fertilization
Feed your plant once a month from spring to autumn. Use a complex mineral fertilizer for decorative leafy plants. Do not feed the plant in winter.
Humidity
Philodendron prefers high humidity level, so the leaves should be regularly moistured in spring and summer period. Regularly wipe the foliage with a damp soft cloth.
Repotting
Repot young plants annually, older ones - once in 2-3 years. A new pot should be slightly larger than the old one. The soil should be water and air permeable. First pour a layer of expanded clay and some soil at the bottom of the pot. Move the plant to a new pot and fill all the voids with fresh potting mix. Water the plant after repotting.
Rotation
Rotating houseplants is important for providing the plant with even light exposure. It helps to ensure that all parts of the plant get enough light and helps to prevent the plant from becoming lopsided or leaning in one direction due to uneven light exposure. The best way to rotate your houseplants is to turn them a quarter turn each week in the same direction. That way, each side of the plant will get equal amounts of light.
