Pinus koraiensis

Korean Pine




  • native to Manchuria, Korea, and Japan
  • cold hardy to zone 4, and warmer parts of 3

Habit and Form

  • an evergreen tree
  • 30' to 40' tall
  • loose, pyramidal form
  • becomes irregular with age
  • medium texture
  • slow growth rate

Summer Foliage

  • evergreen needles
  • 5 needles per fascicle
  • 2.25 to 4.5" in length
  • dark green in color on outside
  • white stomatal lines in inner surface, bluish in color
  • coarse-toothed leaf margins
  • blunt apex

Autumn Foliage

  • no fall color (remains green)
  • needles persist 3 years


  • monoecious
  • no ornamental value


  • brown cone
  • oval, 3.5 to 6" long
  • resinous
  • blunt apex
  • found solitarily or in 3's


  • grayish brown in color
  • flakes off in irregular pieces
  • reddish-brown inner bark
  • young shoots covered with a dense reddish brown


  • adaptable to most soil types and pH as long as they are well-drained
  • full sun to light shade
  • moderately drought tolerant
  • root prune for successful B&B transplanting
  • probably not tolerant of air pollution
  • cold hardy

Landscape Uses

  • good for bonsai
  • good accent tree
  • grouping or screen


  • no serious pest problems

ID Features

  • needles in 5's, with a bluish innerside
  • needles have a blunt apex
  • grayish brown park, flaking off in irregular pieces
  • serrated leaf margins


  • by seed, no pregermination requirements


'Glauca' - This form bears long, soft needles of a pronounced blue color.

'Silveray' - This is a fastigiate, columnar form with bluish needles.

'Winton' - A low, spreading plant with blue-green needles, this plant grows much wider than tall.

© Copyright Mark H. Brand, 1997-2015.

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