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

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Cultural Details for Paulownia tomentosa

Common Name:
Royal Paulownia, Empress Tree, Princess Tree

Growth Rate:
Fast, 14-17' in 4-5 years.

Average Mature Height:
30-40', may grow 50-60'

Average Mature Width:

Flower Details:
Pale violet with darker spots and yellow stripes inside. 2" long, borne in April, vanilla scented.

Fruit Details:
Ovoid, beaked light-dirty brown, dehisant capsule 1-2" long containing up to 2000 winged seeds.

Fall Color:
Of no consequence as leaves usually fall off green.

Bark Details:

Disease / Insect Problems or Resistance:
Mildew and Twig canker have been reported. Wood tends to be somewhat brittle.

Native Habitat:
zones 6-9, China, introduced 1834. Escaped from cultivation from southern New York to Georgia.

Other Features:
Similar to Catalpa, dense shade restricts grass growth.

Culture and Care:
Transplant balled and burlapped in early spring into moist well drained soil, full sun or partial shade.

This plant was blooming:
4/19/2010 - 5/19/2010

Plantings of this cultivar at Boone County Arboretum:
7650, 7660

    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.