I found red rhubarb I was looking for quite some time. I found them at Wadajuku which is located at the border of Nagano and Yamanashi pref.Last year I saw red rhubarb on TV and knew where they grow them. I contacted Fujimi machi in Nagano  but they are a bit more expensive. Now, I see red rhubarb in front of me. Incredible thing. I bought some for trial and then bought 4 kilos of them. They look american cherry pink pink and so good to taste!!!