How to care for a Large philodendron pink princess?
The care may be no different from when it was small or young. You might want to consider moving it to a slightly larger pot, about 2 inches from the one you are currently using. This can be beneficial!
Typically, this pot transfer is done to avoid excessive watering and to give the roots the freedom to grow.
You can even try mixing soil for a unique approach! Combine one part standard potting soil, one part perlite, and one part orchid bark for something truly special.