These roses are actually real and alive. They are called Rainbow or Happy Roses. They are not a particular variety of Rose, however. 利用白色的玫瑰,把茎的部分成对称的四分,把它们分别浸入你喜欢的颜色,呆上24-48小时后,你就可以拥有自己独一无二的七彩缤纷的玫瑰花!! They begin as a regular white flower. They are then dyed from the inside-out. I understand that it easy to do yourself. You can use any white flower that continues to "drink" after it's been clipped.