Poncirus trifoliata or Hardy Orange is a member of the citrus family and can be grown throughout Kentucky. Plants commonly grow to around 10 feet tall and produce an abundance of small orange like fruits that are unusually sticky and very sour. Though they are not good eating off the tree, they may be made into marmalades and jams. The seedlings from this tree are used as under stock for many citrus crops throughout the world because of its hardiness and reliability. Many forms are now entering the ornamental plant market to be used as specimens in gardens. One cultivar, “Flying Dragon” is a dwarf form with contorted branches.
“Plant Profile: Poncirus trifoliata or Hardy Orange”, by Eric Garris, Bernheim Arboretum & Research Forest & KNLA Board of Directors
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