It was supposed to be easy. Build a wooden box, put it up in the garden, and the bumble bees will move in to pollinate your plants on a daily basis. Well they haven’t arrived yet. I’m still crossing my fingers though. Or maybe I came too close with lawnmower.
I made the mistake of using raw untreated wood with no protection from the rain, so the nest box has been deformed in the bottom, which is not good.