Transcript Tree & Shrub Pruning Naperville Community Gardens March 5, 2012 Stan Holat Autumn Tree [email protected].

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
Tree Structure
Full length before
Close up before
Close up before 2
2nd Cut
Close up after
Close up after
Close up reverse side
Full length after
Procedure
1. Choose straightest leader to remain.
2. Look for location to cut down to (1/2 of the
length)
3. Try to keep the current shape.
4. Remove smaller competing branches.
Deciduous Shrub Pruning
Shrub Pruning Guidelines
• Know your
shrubs
• Desired form
• Arrangement
Know your shrubs
•
•
•
•
•
Species
Cultivar/variety
Characteristics
History
Site
Shrub Form
• Formal
• Natural
Arrangement
• Hedge
• Foundation
• Grouped
Methods of shrub pruning
•
•
•
•
Shearing/Shaping
Heading
Renewal
Rejuvenation
Shearing/Shaping
• Formal
• Higher
Maintenance
• Caution of “dead
zone”
• Foliage Shell
• Insect problems?
Hedge Tapering
• Bottoms must be wider than top to allow
sunlight to lower branches to keep them
green
Heading
• Maintain existing
form
• Thinning and
cutting back to
laterals
Heading
• Heading to maintain size
• Heading cut
Renewal Pruning
• Stimulates
new growth
throughout
shrub
• Remove
older stems
• Prune out
1/3rd each
winter
Rejuvenation
• Cut ALL stems low