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 Betula nigra 'Cully'

Common Name:
Heritage® ('Cully') River Birch

Growth Rate:
medium to fast

Average Mature Height:
40-70' may reach 90'

Average Mature Width:
40-60'

Flower Details:
Male catkins are drooping and brown, 2-3" long. Female catkins are smaller, insignificant, upright, and greenish. Both appear in spring on the same tree.

Fruit Details:
small nutlet, pendulous catkin, ripens and sheds seed in spring.

Fall Color:
Yellow.

Bark Details:
Bark starts to exfoliate on young trunks (1 to 2" in diameter) and opens to a white to salmon-white on young stems eventually darkening to salmon-brown as the tree ages.

Disease / Insect Problems or Resistance:
Less prone to leaf spot.

Native Habitat:

Other Features:
Leaves are larger, glossier dark green than species.

Culture and Care:
Cold hardy to at least -40 degrees F. Extremely well-adapted.

This plant was blooming:
4/5/2010 - 4/7/2010
4/22/2005 - 5/6/2005

Plantings of this cultivar at Boone County Arboretum:
3590, 3620, 3630

    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