Landscape Plants of the Upper Midwest

Dawn Redwood

{Picture of Dawn Redwood}
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Plant Information

  • Plant Type: Tree: Large
  • Scientific Name: Metasequoia glyptostroboides Play audio of plant name
  • Family: Dawn Redwood
  • Zone: 5
  • Plant Size: 60-70'
  • Bloom Color: Not Applicable
  • Habit: Pyramidal
  • Culture:

    Requires adequate moisture and a neutral to acid soil. Full sun to partial shade.

  • Notes:

    A magnificent deciduous conifer with an intriguing history. The foliage is an elegant fresh green in spring turning bronze in fall. Not for the typical landscape as it grows to a very large scale. May suffer dieback in zone 5 during severe winters. Metasequoia was identified from fossil records in 1940 and thought extinct for over 20 million years. In 1941 a single grove was discovered growing wild in central China. Today all plants are descendants of seed collected from these trees.

  • Pruning:Pruning animation

    Structural pruning targets branch defects with the goal of producing strong-branched, long-lived trees with a low risk of storm damage.  The importance of addressing branch defects when trees are young cannot be over-emphasized. The suppression or removal of small branches is far easier and better for long-term tree health than when branches become large.  Beginning when a tree is planted, it should be evaluated each year and branches with structural defects should be suppressed, or if small, removed.  This will promote a resilient tree structure that is also more ascetically pleasing.    

    These site explain the fundamentals of structural tree pruning:

    Urban Tree Foundation – Structural Pruning

    University of Florida – Structural Pruning

    If a branch needs to be removed for clearance, is damaged, or possesses a critical defect, a 3-point cut is used (see animation). First an undercut is made to prevent bark from tearing down the trunk if it remains attached to the falling limb. The branch is then "stub cut" which removes most of the branch to facilitate a clean final cut. The final cut is made just outside the branch collar, which is the swollen area between the branch and the trunk. Cuts made here will heal most readily and prevent rot from invading the main trunk of the tree, a common occurrence when branches are cut flush with the trunk.

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Landscape Plants of the Upper Midwest
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Contact
Bill Hoch, Associate Professor
Montana State University
E-mail: bhoch@montana.edu

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