When I create fairy gardens with tall houses in containers where there is nothing behind the dwelling, I like to put taller plants near the houses – otherwise, the house sort of sticks out awkwardly and feels unprotected. (I don’t know about your fairies, but mine like cozy. Wide-open spaces are not their jam, I’m sure.)
I also like to include plants low to the ground, for cover. For this washtub fairy garden, I chose creeping thyme, corkscrew rush, foxtail fern, and (fuzzy red plant name). I loved the pop of color from the (fuzzy red plant name) and corkscrew rush plant is one of my favorites for fairy gardens because it’s SO whimsical.