This video shows the efficiency and sustainability of a bottle tower garden. They can be installed against the wall of a house or along a hedge or a fence. The number of bottle towers has to be adapted for providing food security for the family all year long and year after year. It is a method applicable anywhere on earth, both in rural and in urban areas, e;g. on a balcony. It can be applied at the lowest cost to alleviate malnutrition and hunger.