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 Ilex opaca

Common Name:
American Holly

Growth Rate:
Upright; conical; pyramidal in youth; with age open, irregular with high branches at wide angles

Average Mature Height:

Average Mature Width:

Flower Details:
Staminate in cymes, pistillate 1-3 on a peduncle, dull white, 4-lobed

Fruit Details:
Berry-like, dull red rounded drupe, 4 pyrenes

Fall Color:
None, evergreen.

Bark Details:
Smooth light gray bark.

Disease / Insect Problems or Resistance:
Holly leaf miner,bud moth, scales, beetles

Native Habitat:
Massachusetts to Florida, west to Missouri and Texas

Other Features:
Larval food for Henry's elfin butterfly; berries attracts birds; tolerates air pollution

Culture and Care:
Needs moderately fertile, moist, loose, acid, well-drained soil. Sun to partial shade; avoid extremely dry, windy, and wet sites.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
5674, 5675

    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.