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. 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 December 2015, about 2' tall and 3/8" caliper trunk, no fruit or flowers. Grown on dwarfing rootstock in 5 gal containers. Shipped in 3' x 1' x 1' braced containers. TEMPORARILY OUT OF STOCK.