Split-Leaf Philodendron (Monstera deliciosa) | When this plant gets sufficient light, the large heart-shaped leaves become dissected with deep splits and perforated with oval holes. It can be trained to grow up a pole and indoors can reach 10 to 15 feet high and 8 feet across. Cultivation Requirements: Medium to bright light. Rich, well-draining soil. Water when soil surface dries. Fertilize every 1 to 2 months.