Your Philodendron Birkin prefers very bright, indirect light. It can survive in medium light conditions, but growth may be slow. The variegation on the leaves will be more pronounced in higher light. Do not put it in full, direct sunlight as it will burn the foliage.
A general houseplant fertilizer every four weeks during the spring and summer. No fertilizer is necessary during the winter when plant growth naturally slows.
Philodendron leaves are toxic to pets and humans.