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 Gymnocladus dioicus

Common Name:
Kentucky Coffeetree

Growth Rate:
slow to medium

Average Mature Height:
60-75'

Average Mature Width:
40-50'

Flower Details:
Dioecious or polygamo-dioecious, greenish white, 4-5 petals,spreading, each 0.3" long, blooming late May-early June

Fruit Details:
Reddish-brown to brownish-black, leathery pod, 5-10" long, 1.5-2" wide, containing a few, large, blackish-brown, hard-shelled, rounded seeds imbedded in a sweet, sticky pulp: ripens in October, but hang on tree through winter

Fall Color:
Some Yellow

Bark Details:
Rough, with hard,thin, firm and scaly ridges curling outward (recurving) along their edges; very unique and interesting bark pattern.

Disease / Insect Problems or Resistance:
none serious

Native Habitat:
New York and Pennsylvania to Minnesota,Nebraska, Oklahoma, and Tennessee

Other Features:

Culture and Care:
Deep, rich, moist soil is preferred, with full sun but, highly adaptable

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
1830, 3340, 3360

    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