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 Buddleja davidii 'Nanho Blue'

Common Name:
Nanho Blue Butterfly Bush

Growth Rate:
Fast, when cut to ground in spring will reach 5-8' by fall; compact grower

Average Mature Height:
Compact cultivar, to 8' tall

Average Mature Width:

Flower Details:
Perfect, mauve-blue, each flower 0.25-0.33", low fragrance, borne in 4-6" long (sometimes longer) upright panicles. June through frost on new growth, attracts butterflies and bees

Fruit Details:
0.25-0.33" long brown capsule, seeds freely, can become weed like

Fall Color:
no fall color

Bark Details:

Disease / Insect Problems or Resistance:
Mites problematic when drought stressed, nematodes when in sandy soil, some viruses.

Native Habitat:
China, cultivated 1890

Other Features:
Compact grower, fine for cut flowers, lasting two days in vase

Culture and Care:
Easily transplanted, prefers well-drained, moist fertile soil, full sun

This plant was blooming:
6/21/2010 - 8/20/2010
7/28/2005 - 8/4/2005

Plantings of this cultivar at Boone County Arboretum:
Bed 94

    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