B. x rubella (B. x flava)
The cross between B. sanguinea and B. arborea was the only angel's trumpet available in Europe for a very long time. In the beginning, only yellow colours were predominant. In the meantime, however, white, red, orange and pink colours have also been bred out.
The flowering behaviour is similar to that of B. sanguinea. As a rule, good flowering can only be expected outside our summers.