Citrus reticulata subsp. unshiu. The Owari satsuma is more cold-hardy than other citrus, with established trees surviving temperatures of 15 degrees. Owari satsumas are also slower growing than other mandarins, so they do very well on semi-dwarfing rootstock. The low, spreading growth habit of this citrus tree is charming, with slightly drooping leaves. And there's nothing more exciting in the gardening world than picking your very own mandarin orange, peeling the loose skin and enjoying the fruits of your labor. Fruit ripens in late fall through early winter. Trees are small as of November 2013, about 2' tall and 1/2" caliper trunk, not full yet but new growth is developing. Grown on dwarfing rootstock in 5 gal containers. TEMPORARILY OUT OF STOCK.