Lighting: A split leaf philodendron needs medium to bright light. It can survive in lower light, but the leaves won’t split and the plant becomes leggy. Keep it out of the direct sun.
Watering: Water well until the water drains out the drip holes in the bottom of the pot. Allow the top 25-30% of the soil to dry out before watering again. Keep the soil damp but never soggy. Water droplets or perspiration on the leaves indicate over-watering; brown leaf edges indicate under watering.
Fertilizer: Feed every two weeks when the plant is actively growing with a balanced plant food diluted to 1/2 the recommended strength.
Temperature/Humidity: This plant prefers warm temperatures and doesn’t do well in temperatures below 50°F (10°C) . Split leaf philodendrons grow better in high humidity, but adapt to household humidity.
Potting: Unlike most indoor plants, a split leaf philodendron prefers to be in a large pot. These bigger pots promote larger leaves.
Pruning: Try to keep the large leaves clean and dust free. This plant needs to be aggressively trimmed or it can take over your room.