In order to efficiently take "nutrients", which is one of the elements necessary for prolonging the life of flowers, there is a method of ingesting sugar such as sugar. In this experiment, a method of dissolving 5 g of sugar per graduated cylinder is adopted as a method of ingesting sugar. Regarding nutrients, I will not explain in detail because it was the content of the previous year, but as a result of the experiment, it was found that granulated sugar is good. For more information, please see Flower Potion .(http://flowerpotion.jp/en/kekka.html)