If you find yourself with a garden space that is horizontally challenged, take a tip from the Spaniards and go vertical. In countless courtyards throughout Cordoba, gardeners are not deterred by limited space. Instead they put plants in containers that climb up the walls toward the sunlight. No need to get fancy with the pots, simple terra cotta will do. Add in some blossoming flowers in coordinating colors, mix up the textures of the foliage, and just keep rising higher and higher. One more thing: consider drought-resistant plants because watering all of these regularly would be bothersome.