Among the most famous concentrates worldwide is white rhino, the end-product derived from White Rhino even hybrid first raised in the Netherlands by Green House Seeds; a combination between a Brazilian Sativa landrace and a resin-heavy South Indian Indica. White Widow’s genetics have given rise to many other legends like White Russian, White Rhino, and Blue Widow. Still, many growers prefer cultivation of the original White Widow, which flowers in about 60 days indoors.