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

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Cultural Details for Rhododendron catawbiense 'Album'

Common Name:
White Catawba Rhododendron

Growth Rate:
Slow

Average Mature Height:
6'

Average Mature Width:
5-8'

Flower Details:
Lilac opening to pure white with greenish yellow spotting 1.5" long, 2.5" broad; mid to late May.

Fruit Details:
Capsule, dehiscent, 5-valved

Fall Color:
Evergreen

Bark Details:
Stem yellowish green on new growth changing to brown with age

Disease / Insect Problems or Resistance:
Botryosphaeria canker, crown rot, dieback, dampening-off, leaf spots, leaf scorch, powdery mildew, rust, shoot blight, shoestring root rot, wilt, aphid, lace bug.

Native Habitat:
Alleghenies, West Virginia, southwest to Georgia and Alabama, 1809

Other Features:
Excellent lustrous dark green foliage through winter. Great vigor. Hardiness to -25 F.

Culture and Care:
Needs good drainage, light shade, sensitivity to salinity, high pH, and winter injury, Zone 4 to 8

This plant was blooming:
5/10/2010 - 5/19/2010
5/20/2005 - 5/27/2005

Plantings of this cultivar at Boone County Arboretum:
Bed 41

    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