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 Fraxinus americana 'Rosehill'

Common Name:
Rosehill White Ash

Growth Rate:
Medium

Average Mature Height:
50'

Average Mature Width:
30'

Flower Details:
Dioecious, usually unisexual, apetalous, both sexes appearing in panicles before the leaves, calyx minute, campanulate, corolla absent

Fruit Details:
Samara, 1-2" long body rounded in cross section; looks like a canoe paddle

Fall Color:
Bronze-red

Bark Details:
Ash gray to gray-brown, furrowed into close diamond-shaped areas seperated by narrow interlacing ridges; on very old trees slightly scaly along the ridges.

Disease / Insect Problems or Resistance:
Leaf rust, leaf spots, cankers, dieback, ash borer, lilac leaf miner, lilac borer, carpenter worm, brown-headed ash sawfly, fall webworm, ash flower gall, oyster shell scale, and scurfy scale.

Native Habitat:
Nova Scotia to Minnesota, south to Florida and Texas

Other Features:
Great ornamental despite a long list of pests

Culture and Care:
Easily transplanted, makes it's best growth on deep, moist, well drained soils, ph adaptable, full sun.

This plant was blooming:
4/5/2010 - 4/14/2010
3/30/2007 - 4/5/2007

Plantings of this cultivar at Boone County Arboretum:
830, 860, 890, 940, 1870, 1900, 1940, 1960, 1980

    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