Whose Haze is it anyway? Green House Seeds crossed Neville’s Haze with some landrace strains from Southeast Asia to create the Dutch sativa known as Arjan’s Ultra Haze #1. This 4-time Cannabis Cup placer makes this strain a winner, but flowering takes over three months, so growers must be patient. Meditative and inspiring with spicy mint and peppery flavors, Arjan’s Ultra Haze #1 is hard to find, but worth seeking out.