Philodendron magnumPhilodendron magnum is a climber that develops glossy, dark green leaves that can grow as big as 2' long at maturity! ~Do Not place in full sun. Though many Philodendron can be acclimated to full sun, our Philodendron have been grown under shaded, greenhouse conditions. ~Philodendron are considerably hardy & tolerant of a wide range of growing conditions, but for the best growth it is recommended to provide higher levels of humidity.