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

Open Daily
Dawn - Dusk
Free Admission

Join Our Email List
Email:  

Contact Us

Information on invasive species

Emerald Ash Borer Information

Horticutural Links

Donate to the Boone County Arboretum

Boone County Arboretum

Promote Your Page Too

Employee Login

Cultural Details for Quercus palustris

Common Name:
Pin Oak

Growth Rate:
One of the faster growing oaks, 12 to 15' over a 5 to 7 year period

Average Mature Height:
60-70', but can reach over 100'

Average Mature Width:
25-40'

Flower Details:
Monoecious, male in pale yellow-green catkins, females reddish-green borne on short spikes in new leaf axils, May

Fruit Details:
Nut, solitary or clustered, sessile to short-stalked, 0.5" high, 0.66-0.75" wide, nearly hemispherical, light brown, often striate, enclosed only at basal 0.25-0.33" in a thin, saucer-like cap, mature in second year.

Fall Color:
Variable russet, bronze or red.

Bark Details:
Thin, grayish brown bark, smooth in youth. With age, develops narrow, relatively shallow ridges and furrows

Disease / Insect Problems or Resistance:
Galls are often a problem; iron chlorosis can be serious on high pH soils.

Native Habitat:
Massachusetts to Delaware, west to Wisconsin and Arkansas. Introduced before 1770.

Other Features:
Strongly pyramidal in youth. With age many lower branches are lost. The remaining lower branches become pendulous, the middle horizontal, and the upper upright, creating an oval-pyramidal form.

Culture and Care:
Readily transplanted because of shallow, fibrous root system. Prefers full sun, moist, rich, acid, well-drained soil. Tolerant of wet soils, and found in the wild on wet clay flats where water may stand for several weeks; Intolerant of high pH. Zone 4-8

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
2000, 2010, 2020, 4270, 4300, 4470, 4490, 4900, 4910, 4920, 4930, 4940, 4950, 5760, 6500, 6510, 6520, 6530, 6540, 6550

    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