For shutter-style closet doors, remove the shutters first. You now have an open "window" of space just begging for a creative touch. Adding panes of frosted glass, a wicker panel, or some painted ...

Or use a louvered closet door and train the vines or plants to climb between the rungs of the shutters. Solid doors can also work beautifully as trellises when you add chicken wire or small cup ...