I've had a giant (about 13' tall) non-flowering bird-of-paradise plant for about two months now (see pics--1 at the time of purchase, and 3 at present). I keep my apartment at an almost constant 70-72° and it's perhaps a little dry in here. The giant leaves are beginning to crack and break. A few questions: What could be causing this and how to prevent it? Once the edges or tips of the leaves have cracked, should I cut that part off (I'm assuming if I cut a leaf it will grow back)? How often would you water this plant and how much water? Should I keep the apartment more humid?
PS: It is a white bird-of-paradise