Boone County Arboretum
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Union, Kentucky 41091
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Cultural Details for Betula nigra 'Summer Cascade'

Common Name:
Summer Cascade Weeping River Birch

Growth Rate:

Average Mature Height:
25' (to possibly 60' if staked and trained)

Average Mature Width:
12-15' (If untrained forms a mounded shrub/small tree with successive layers of arching branches)

Flower Details:
Male catkins are drooping and brown, 2-3" long. Female catkins are smaller, insignificant, upright, and greenish. Both appear in spring on the same tree.

Fruit Details:
Small nutlet, born in a 1-1.5" thick cylindric, pendulous catkin, ripens and sheds seed in spring.

Fall Color:

Bark Details:
Beautiful, exfoliating bark like the species.

Disease / Insect Problems or Resistance:
Trouble-free, in moist years can have leaf spot causing premature defoliation of older (interior) leaves. Birch borer resistant. Aphids are common on soft succulent growth.

Native Habitat:
Southeast US. Found as a chance seedling by tobacco farmers John and Daniel Allen at Shiloh Nursery in Harmony, NC. A fast grower reaching perhaps 25' or more (parent plant is still relatively young).

Other Features:
Provides winter interest. Good specimen or focal point. Growth habit is well suited for topiary

Culture and Care:
Adaptable, Zones 4-9. Full Sun. Water regularly but do not overwater. Tolerant of difficult sites. Hardy to -25.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
1432, 8573

    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.