As this home already has a rustic, Provencal look and feel, a shutter was added to the window, painted in the same blue already used elsewhere on the property, the creepers and climbers from the courtyard and garden to the right of the kitchen (not shown) were allowed to clamber towards the window, creating an established feel. A few low growing shrubs and seasonal annuals planted, and you have a great impact area - almost an "impressionist" painting!?
You don't have ground/ soil in which to plant? Use pots or containers, and plant shrubs, topiaries or even, a lemon or bay tree in them, under plant with groundcovers and/ or annuals and the effect will be just as stunning. Just remember to take the light in the area into account, and also since pots do dry out quicker than the ground, do ensure you have the time or someone who can water (appropriately) for you. Also ensure that you select plants that are not by nature very thirsty or that require loads of attention - the objective is to create a beautiful space to enjoy, not to spend hours watering (not good for the environment anyway) or tending to them.