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Tree & Shrub Pruning. Naperville Community Gardens March 5, 2012 Stan Holat Autumn Tree [email protected] Pruning?. Pruning Locations. 3-Cut Branch Removal. Why do we prune?. Aesthetics Risk Reduction Plant Health Plant Growth Rate Tree structure-Subordinate Pruning.

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Tree shrub pruning

Tree & Shrub Pruning

Naperville Community Gardens

March 5, 2012

Stan Holat

Autumn Tree

[email protected]





Why do we prune
Why do we prune?

  • Aesthetics

  • Risk Reduction

  • Plant Health

  • Plant Growth Rate

  • Tree structure-Subordinate Pruning











Procedure
Procedure

  • Choose straightest leader to remain.

  • Look for location to cut down to (1/2 of the length)

  • Try to keep the current shape.

  • Remove smaller competing branches.



Shrub pruning guidelines
Shrub Pruning Guidelines

  • Know your shrubs

  • Desired form

  • Arrangement


Know your shrubs
Know your shrubs

  • Species

  • Cultivar/variety

  • Characteristics

  • History

  • Site


Shrub form
Shrub Form

  • Formal

  • Natural


Arrangement
Arrangement

  • Hedge

  • Foundation

  • Grouped


Methods of shrub pruning
Methods of shrub pruning

  • Shearing/Shaping

  • Heading

  • Renewal

  • Rejuvenation


Shearing shaping
Shearing/Shaping

  • Formal

  • Higher Maintenance

  • Caution of “dead zone”

  • Foliage Shell

  • Insect problems?


Hedge tapering
Hedge Tapering

  • Bottoms must be wider than top to allow sunlight to lower branches to keep them green


Heading
Heading

  • Maintain existing form

  • Thinning and cutting back to laterals


Heading1
Heading

  • Heading to maintain size

  • Heading cut


Renewal pruning
Renewal Pruning

  • Stimulates new growth throughout shrub

  • Remove older stems

  • Prune out 1/3rd each winter


Rejuvenation
Rejuvenation

  • Cut ALL stems low


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