The appearance of a properly pruned plant is like a good hair cut: hardly noticeable at first...
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Transcript of The appearance of a properly pruned plant is like a good hair cut: hardly noticeable at first...
The appearance of a properly pruned plant is like a good hair cut: hardly noticeable at first glance.
Presented by
Dr. Teri Hamlin
Georgia Department of Education
Landscape
Pruning Trees
Pruning
• Pruning at Planting: – If quality plant stock,
pruning is not necessary
• Do not prune to compensate for root loss– latest research show pruning
does not help overcome transplant shock
Why Prune• Removal of dead, broken, diseased,
or insect-infested branches
• Maintain desired shape & size (make it look natural)
• Promote healthy vigorous growth
• Promote flowering & fruiting• Allow air and light to enter the
interior of the plant.
Pruning Tools
Sharp&
Sterile
Pruning Tools• Hand Shears: branches up to ½” in diameter• Lopping Shears: branches ½ to 1 ½” in diameter• Pruning Saw: branches larger than 1 ½” in diamter• Chain Saw: branches larger than 3”• Pole Pruner: long-handled pruner to reach into canopy
w/o a ladder. (power pole pruner)• Hedge Shears: hedges and other shrubs up to ½” in
diameter• Grass shears: 2 blades designed to cut grass around
edges of walks or flower beds.
Making the Cut
Directional Pruning- cuts should be about ¼ in above bud or beyond branch
collar
Making the Cut
Pruning Technique• Heading
– Removes a part of a shoot
ThinningRemoves the entire shoot
or limb
Pruning Technique
Thinning Selectively
cutting oldest branches to ground opens center and promotes new growth
Pruning TechniqueHeading
• Use for small leaf hedges
• Creates dense, tight foliage
Rejuvenating/Renewal• Restore overgrown
shrubs
• Cut all branches 4-8” above ground
• If there are any diseased or dead plants you should remove them first.
Root Pruning
• Don’t prune completely flush with the main trunk
Crown Thinning
• No more than one-fourth of the living branches
should be removed at one time
Crown Raising• Remove branch from
bottom to provide clearance
• After pruning the ratio of living crown to total tree height should be at
least two-thirds
Crown Reduction
Ratio of live crown to total tree height should be at least
two-thirds
Never cut main branches of tree back to
stubs (Topping Trees)
Pruning Young Tree
• A. Remove suckers
• B. Low Growing Branches infer w/maintenance practices
• C. Upright growing shoots or waterspouts
• D. Inward growing branches
• E. Branches that compete with a central leader
Large Limbs• A. Make partial cut from
underneath
• B. Make a second cut from above several inches out– allows the limb to fall
• C. Complete job with final cut just outside the branch collar
Pruning Limbs
An Improper Cut
made through the branch collar will take 3x longer to
heal
Pruning TimeGeneral Rule
• Trees & Plants that flower before May – Prune after bloom
• Dogwood, Redbud, Saucer Magnolia, Flowering Cherry
• Azalea, Forsythia, Rhododendron, Clematis, Climbing roses
• Trees & Plants that flower after May– Prune prior to spring growth
• Chaste Tree, Crape Myrtle, Sourwood
• Camellia, Nandina, Sweetshrub, Abelia, Floribunda roses
North Georgia Pruning Time
• January - March
• Broadleaf evergreen
• Needleaf evergreen
• Renewal Pruning
• Large Tree Limbs
Pruning Paint
• Correct Tools
• Correct Time
• Correct Technique
“Placebo” - making the user feel goodResearch shows that paint or wound dressings do not
stop decay nor cause the wound to close faster
Successful Pruning
What To Prune?
• On your Pruning Worksheet put a line through the parts of the tree or shrub that you feel should be pruned and tell why.
• Mark in pencil so you can make corrections if needed.
Plant #1:Create a central leader on this young
plant.
Plant #2:Allow plant to have a higher canopy
Plant #3:Open the Canopy