Seeing Too Much Unwanted Posts On FB

I recently got a friend request on Facebook from somebody who seemed to share the same interest in gardening. OK, I allowed him as a friend. Now I am getting lots of FB posts that comes from his links and likes. And most of these posts have to do with entertainers and people I don't have an interest in. Oh boy, my mistake. It is bad enough, my regular friends posts lots of stuff to share already, and now getting even more junk showing up by the minutes, hours, daily...arghh.