The aroids are growing in popularity in recent years. I live in zone 10 to 11. My climate is Mediterranean with mild winters. Temperatures may drop below 10C/50F but it never freezes. Which Philodendrons need protection from that weather? I place them under the fruit trees in my garden. In the summer, they are protected from direct sunlight. In winter, the trees protect them from hail. Hail occurs often, but it comes in short bursts.