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 Alnus cordata

Common Name:
Italian Alder

Growth Rate:

Average Mature Height:

Average Mature Width:

Flower Details:
Monoecious, males are clusters of yellow-green, 2-3" long, catkins; females are 0.25" reddish green, upright strobili appearing in early spring.

Fruit Details:
Egg-shaped, 1-1.25" long, often occurring in 3's; persistent. It has the largest fruit of the cultivated alders.

Fall Color:
Fall color does not occur as the leaves drop while green or brown.

Bark Details:
brown in youth

Disease / Insect Problems or Resistance:

Native Habitat:
Corisca and southern Italy

Other Features:
Neat pyramidal outline, clean foliage

Culture and Care:
Best near water. Performs well in infertile, dry, high pH soils.

This plant was blooming:
3/22/2007 - 4/5/2007
3/18/2005 - 4/15/2005

Plantings of this cultivar at Boone County Arboretum:
7700, 7710, 7720

    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.