It's hard to say really. It's going to boil down on how often you play the guitar. The easiest way to approach it would be to maybe do it once a month, and that might even be too often. The nice thing about finished maple fretboards is that you can clean them so much easier than a rosewood or
ebony board because all you have tyo do is use a damp rag and wipe it clean to get all the grime off.
Jimmy
