KENKOKUDEN is old variety which produce SUMI(black spotted line on the back of leaves). And sometimes stripe would appear too. When the leaves produce beautiful stripe and tiger stripe, it become very rare and honored, high-class variety called HIGUMA. It is very small chance to mutate. And HIGUMA has very few availability even in Japan because they grow very slow and hard to grow, yet very popular. When Kenkokuden gets Sumi or stripe, it would be more valuable. There is ones doesn’t have either of them.
