Quart plant of Trichosanthes kirilowii v japonica is much like T. cucumeroides but bigger reaching 50 to 60 feet, the huge tendriled white flowers make passionflowers pale by comparison; they look like something out of a science fiction movie. This perennial vine produces snake shaped gourds in a sunny location. It is used extensively for Chinese medicinal purposes. Hardy in zones 8 to 11.