Out of a bunch mixed "Premier Series" plants, we selected a heavy bloomer with the best red and the smallest yellow zone in the flower. 'Premier Series' is "officially" in USDA zone 8 but I wouldn't know why it couldn't be grown as easily in zone 7 as others. BEFORE ORDERING, PLEASE read very important information about growing and shipping Alstroemerias on top of the Alstroemeria main page.