Plant Selection and Installation
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Transcript of Plant Selection and Installation
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Plant Selection and Installation
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Describe the factors involved in selecting appropriate landscape plants.
Explain the general guidelines for purchasing healthy landscape plants.
Compare and contrast the planting procedures for balled-and-burlapped vs. container-grown plants.
Diagram how to stake a newly planted tree.
Learning Objectives
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Trees◦Size
Large (>45 ft.) Medium (30-45 ft.) Small (10-30 ft.)
Shade Rooting characteristics
◦Invasive◦Surface roots
Shrubs
Choosing Trees and Shrubs
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Small-space trees Amur maple Japanese maple Eastern redbud Kousa dogwood Kwanzan cherry Japanese tree lilac
Plant Selection
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Trees with invasive roots: Silver maple Willow Poplar Alder Sweet gum
Tree Roots
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Local garden centers ◦ Sell plants grown by wholesale nurseries
Retail nurseries ◦ Grow some of the plants they sell, and may offer
landscape design and installation services
Mail-order catalogs ◦ May offer plants not available locally
Sources of Landscape Plants
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Tree health Tree size Tree type
Select Healthy Stock
Root system, root ball, or container spread should be 10 to 12 inches for every inch of stem diameter.
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Inexpensive and light weight
Best when young Should have a caliper of <2
inches Plant when dormant before
buds begin to swell Soak roots in water for up to
24 hours before planting.
Tree Type: Bare-Root
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Both fine and coarse roots are included ◦ Less transplant shock
Handle root ball gently to avoid disturbing root contact with soil
Watch for buried root collars:◦ Avoid buying trees with
more than 4 inches of soil over the root collar.
Tree Type: Balled-and-Burlapped
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Round pots can cause circling roots ◦ cut or straighten at time of
planting.
Should be well rooted but not root-bound.
Avoid trees grown bare-root but recently potted for sale.
Tree Type: Containerized
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Root Bound
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Keep trees and shrubs shaded, cool, and moist before planting.
Remove all labels/wires from the stem.
Point tops of plants away from afternoon sun if they must be stored in the open.
Pre-Planting Care
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Tree Roots Grow Laterally
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Remove wire baskets, pots, etc. Cut away the burlap from top and sides of
root ball
Planting Depth
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What NOT To Do…
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Bare-root trees need staking to anchor.
Staking should allow for trunk flexing in the wind.
Trees allowed to move with the wind develop reaction wood.
Remove after 1-2 seasons.
Staking New Trees
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Deep, thorough watering is key. Sprinkler systems for lawn offer only
shallow watering. Place a hose at the tree base for 15
minutes. Mulch around the base to prevent
evaporation.
Irrigating New Trees
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Plant shallow using backfill soil mounded to cover root system
Install subsurface tile drains to carry water away from roots
Dealing with Poor Drainage
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The most important aspect of landscape tree selection is tree ______________.
A common problem with balled-and-burlapped trees is buried root __________.
Bare-root trees should be planted in which season?
The planting hole should be _________ times ___________ than the root ball.
T or F –All newly planted trees should be staked.
Review Questions