RobG7aChattTN

Poncirus trifoliata is often called Citrus trifoliata and is either a true citrus or a relative close enough to hybridize and to use as a root stock with true citrus. It is rated at zone 5 but the fruit is horrible tasting with bitter, pine-like oils. The Citsumaquat hybrid has taken brief exposure to -5F (-20.6C not -5C) and had also survived the previous very cold winter with little damage.