Where do you place your plants?
You can actually plant plants anywhere, it is mainly about which plants you choose. In a small bathroom you just use smaller plants and in a larger bathroom you can place several or larger plants.
As mentioned earlier, you naturally have very nice bathroom accessories for this, but there are many more places. Think, for example, on top of your toilet's reservoir, the edge of your bath, on your sink, in your cupboard or on the edge of your niche. You can always lose a plant somewhere!