Boone County Arboretum
9190 Camp Ernst Road
Union, Kentucky 41091
Phone: (859) 384-4999
Fax: (859) 384-6888
arboretum@boonecountyky.org

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Cultural Details for Poncirus trifoliata

Common Name:
Trifoliate-orange, Hardy-orange, Bitter-orange

Growth Rate:
Slow-medium

Average Mature Height:
8-20'

Average Mature Width:
5-13'

Flower Details:
Single, perfect 5 petaled, white 1.5-2" across, very fragrant: Late April-early May

Fruit Details:
Yellow berry 1.5" across, numerous seeds, very sour: Ripening in September or October.

Fall Color:
Yellow or yellow-green

Bark Details:
Stems bright green with numerous spines.

Disease / Insect Problems or Resistance:
None serious.

Native Habitat:
Northern China, Korea: Introduced about 1850.

Other Features:
Serves as substitute for lemon, pulp can be made into marmalade, peel can be candied.

Culture and Care:
Easy to transplant: prefers well-drained, acid soils; in full sun.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
7880, 7890, 7900

    The information on this page may have come from one or more of the following sources:
  • Dirr, Michael. Manual of Woody Landscape Plants. Stipes Publishing. 1998.
  • Hightshoe, Gary L. Native Trees, Shrubs, and Vines for Urban and Rural America. John Wiley & Sons. 1988.
  • North Carolina Extension Plant Fact Sheets. www.ces.ncsu.edu
  • University of Connecticut Plant Database. www.hort.uconn.edu