There are orchards north of the “Sea of Galilee” and spread along the Hula Valley in Israel, that have different growing conditions. “This ‘Red Premium’ grapefruit has different, better natural parameters than the average Israeli red grapefruit, just because of the location where they grow,” says Yosi Knop, Galilee Export’s citrus marketing manager.
https://www.freshplaza.com/article/9285124/new-grapefruit-brand-in-israel/