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

Open Daily
Dawn - Dusk
Free Admission

Join Our Email List

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 Maclura pomifera 'White Shield'

Common Name:
White Shield Osage-orange, Hedge-apple, "Bois d'arc"

Growth Rate:
Fast: 9-12' over a 3-5 year period.

Average Mature Height:
20-40', occasionally to 60'

Average Mature Width:
20-40' usually as wide or wider as its height.

Flower Details:
Dioecioius, inconsipcuous in June. Female flowers in dense globose heads, male flowers in subglobose or sometimes elongated racemes.

Fruit Details:
Syncarp of drupes 4-6" in diameter, covered with a mamillate rind, yellow-green in color, becoming effective in September, usually falling after ripening.

Fall Color:
Varies from yellow-green to a good yellow.

Bark Details:
Buff or orange-brown, glabroius, armed with straight, stout, axillary spines, 0.5" long. Wood is amazingly rot resistant.

Disease / Insect Problems or Resistance:
No serious diseases, although leaf spots have been reported.

Native Habitat:
Originally native to Arkansas to oklahoma and texas, but has grown far out if its native range.

Other Features:
Not worth recommending for the residential landscape, but has the potential for rugged, polluted areas. Frutis are messy, so select male cultivars. 'White Shield' appears to be the most thorn-free clone available.

Culture and Care:
Transplants readily, withstands wetness, dryness, wind, full sun, and extreme heat. Once established, it can even tolerate acid and high pH conditions.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
1001, 1002, 1003, 6990, 8489

    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.