bigdog

There could be any number of reasons for the normal basjoo flower to be more red in appearance, and pH could certainly play a role, but I don't know that for a fact. Light, temperature, pH, who knows what else. It could even be a "sport," or a spontaneous mutation. While most Musa basjoo available is the same clone, and hence theoretically all are genetically identical, plants have the capability to mutate on their own.