Owari Mandarin TreeCold Hardy, Clementine like Oranges Why Owari Mandarin Trees? Our Owari Mandarin Tree is one of a kind, growing anywhere in the country as a patio plant and withstanding brief temperature drops down to 12 to 15 degrees. With the Owari, you get sweet, delicious oranges, no matter where its planted. And because it's the cold hardiest orange tree, you're not limited to location in growing the Owari Mandarins, also known as Satsumas. Basically, they can