I've been growing these particular plants, since about this time in the year 2000. These, are presently just recovering from a stint of about 4-5 years with absolutely no watering. I maintained their lighting, but gave them no other care. They kept growing, changing leaf forms, and blooming, until their fifth year without watering, feeding, fertilizing, or any other care.
Here are four different shots of the same plant, with slightly different camera/lighting settings: