Hydroponics is a standard technique in Biology and research. Bangladesh's floating gardens, a unique hydroponics production system constructed with natural grasses and plants, which have been developed in flood areas. It is a method of growing plants by placing roots in nutrient solutions instead of soils, under controlled environmental conditions. In the densely populated country where amount of cultivable land is less or absent. Hydroponics can be a suitable technique in those areas. Hydroponics reduces the want for land because vegetables, fruits can be produced at roof or yard of the house, poly tunnel, net house etc. Vegetables, fruits, flowers can be produced throughout the year using hydroponic technique. Horticulture center of BARI, Bangladesh, makes a success to produce Capsicum , Lettuce, Tomato , Cucumber , Strawberry etc. through Hydroponics. This system in Bangladesh, based on floating gardens, has been recognised by FAO as a globally Important Agricultural Heritage System (GIAHS) for innovation, sustainability, and adaptability.