Bike Shed *incorrect link* A similar lean-to, one completely enclosed to match the home exterior, would be perfect on the garage wall. If it were accessed from inside the garage only, it would be harder to steal + less likely to rust.
A living fence in Charleston. "Create a living privacy fence. Cable wires mounted between fence posts create a sturdy support for climbing plants. Over time the plants can completely fill in the area, providing privacy for the patio.