Philodendron McDowell Philodendron McDowell is known for its dramatic foliage. Striking heart shaped leaves and a crawling growing habit this one is not to be missed! How to care for your Philodendron – Water: Water once the top soil feels dry, droopy leaves can mean too much or not enough water. Light: A Philodendron can survive in low light but grows faster and looks better in medium light. Humidity: They enjoy humidity, mist every few days. Temperature: They like warmth, try not to expose to cold draughts. Other info – Toxic to cats & dogs? Yes Air purifying? Yes Questions? Check out our Philodendron FAQ\’s!