The bean splits open to grow true leaves which usually cling to the stem for about a month, Tomy said.The egg will go on sale on February 24.

• 那些过于羞涩而没有勇气说出“我爱你”，或者想要一点惊喜的日本人现在有了新的选择：一种发芽后带有特殊信息的豆类植物。