The green hide-outs also shelter insects which in turn feed the bats. Stick a finger in the soil, and if it is dry, you can give your plants a long, slow drink that will sink deeply into the soil. Rock walls and rock piles are a haven for tiny bat visitors. Build a bat fort by gathering rocks and stacking them loosely in piles or short walls. Make sure you leave spaces between the rocks so that your resident bats can easily enter and exit.
Bats often take cover inside the slats of exterior shutters.
Nail some old shutters against an east or southeast facing fence, barn, garage or outbuilding. Gardens don't need to be as neat as your living room floor. Let the leaf litter build up in flower beds. A blanket of leaf litter is a great habitat for insects and insects are bat snacks. Build a bat pool.