A deeply tri-lobed philodendron, the holtonianum is one of our favorites at the shop, with it's trident shaped leaves! They are vigorous growers, and readily take to a moss pole, which improves their growth immensely. Like other philodendrons, they prefer a well draining soil, medium to bright, indirect light, and appreciate higher humidity, but don’t require it. Philodendrons are heavy feeders, and we recommend feeding yours weakly, weekly.
We have the Holtonianum in a 6 inch pot, with a moss pole.