Rhamnus cathartica

Common Buckthorn, European Buckthorn

Rhamnaceae

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Habitat

  • native to Europe and parts of Asia
  • naturalized widely in the eastern half of the United States
  • hardy to zone 3
  • Special Note: This species has demonstrated an invasive tendency in Connecticut, meaning it may escape from cultivation and naturalize in minimally managed areas. For more information, .

Habit and Form

  • a large deciduous shrub
  • rounded crown
  • suckers
  • 18' to 25' tall
  • width is usually equal or slightly less
  • medium texture
  • fast growth rate

Summer Foliage

  • subopposite leaf arrangement
  • simple, elliptic leaves
  • 1.5" to 3" long
  • subcordate leaf base
  • serrated leaf margin
  • dark green leaf color

Autumn Foliage

  • yellowish-green leaf color
  • not impressive

Flowers

  • dioecious
  • small, green flowers
  • blooms in May
  • not showy

Fruit

  • berry-like drupe
  • black and glossy color
  • 0.25" in diameter
  • fruit covers branches
  • can be showy
  • birds enjoy fruit
  • poisonous

Bark

  • color is light brown
  • slender stems
  • scaley

Culture

  • full sun
  • easy to transplant
  • tolerant of most conditions
  • prune tolerant

Landscape Use

  • screen
  • hedge
  • for fruiting effect
  • to attract wildlife

Liabilities

  • weedy appearance
  • invasive in some areas
  • leaf spot
  • powdery mildew
  • aphids, scales and rusts

ID Features

  • jet, black fruit along stems
  • subopposite leaf arrangement
  • small imbricate, appressed buds
  • terminal bud modified into a spine

Propagation

  • by seed

Cultivars/Varieties

  • none

© Copyright Mark H. Brand, 1997-2015.

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Citation and Acknowledgements: University of Connecticut Plant Database, http://hort.uconn.edu/plants, Mark H. Brand, Department of Plant Science and Landscape Architecture, Storrs, CT 06269-4067 USA.