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

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Cultural Details for Corylus americana

Common Name:
American Filbert

Growth Rate:
Medium to fast

Average Mature Height:

Average Mature Width:
10-12' wide

Flower Details:
Monoecious male in catkins 1.5-3." long yellowish brown in March. Female inconspicuous rich red.

Fruit Details:
Involucre 1” long, containing a nut 0.50" long, September - October.

Fall Color:
Usually of negligible importance, muddy-yellow sometimes red tint.

Bark Details:
Young branches glandular-pubescent brown

Disease / Insect Problems or Resistance:
Blight, crown gall, black knot leaf spots, Japanese leaf hopper, scales. No extensive problems.

Native Habitat:
New England to Saskatchewan, south to Florida. Zones 4-9.

Other Features:
Twisted branches. Squirrels love the nuts. Probably not a good choice for smaller landscapes.

Culture and Care:
Transplant balled/burlapped or container grown in well drained loamy soil, full sun to light shade. Tends to sucker needs to be pruned.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
Bed 117

    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.
  • University of Connecticut Plant Database.