Shrub Viburnum × juddii [Judd Viburnum] The Judd Viburnum is a hybrid of Viburnum carlesii (Koreanspice Viburnum) and V. bitchiuense (Bitchiu Viburnum), and is considered a better choice for the landscape than both parent species. Very fragrant when in bloom. V. juddii has good resistance towards bacterial leaf spot, unlike V. carlesii. Prune immediately after flowering for best flower show the next year.