The cultivation of Melum is nature-friendly, which means that bees are in charge of fertilizing the plants. No toxic chemicals are used in cultivation, but organic protection is used in the fight against pests. Green energy is paramount and natural resources are used in the gardening. The vegetables are watered with potable water,The greenhouses are heated with hot water, which is abundant in the ground. Then the carbon dioxide necessary for the cultivation also comes from the ground and the electricity from falling lakes.