Planting
and Caring for Trees
Trees and shrubs are a permanent part of a home landscape.
When properly selected and planted correctly in an appropriate
location, they can improve a home’s appearance
and increase its value, as well as provide shade, weather
protection, privacy, and year-round enjoyment. Because
your trees and shrubs are such an important investment,
take care with their planting.
Care and Storage of Seedlings
Improper care of seedlings between delivery and time
of planting is one of the greatest causes of mortality.
Do not store seedlings in heated buildings or where
they are exposed to warm air, sun, or wind.
Potted trees should be watered frequently
to keep soil moist. One method is to submerge the entire
30-seedling tray in water for 10 to 15 minutes.
If planting is to occur within 48 hours
of delivery, leave bare root bundles intact and store
in a cool place (under 50°F). If planting is not
planned for more than two days, open the bundle, separate
the seedlings, and place them in a trench, cover the
roots with loose soil, and fill the trench with soil.
Keep the soil in the trench moist and protect the roots
from exposure to air.
Site Preparation
Site preparation enhances the soil’s ability to
catch and store moisture, reduces grass and weed competition,
and prepares the soil for planting.
Medium to heavy (clay) soils can be summer
fallowed the year prior to planting. Leave rough over
winter and disk, harrow, or roto-till just before planting.
Do not summer fallow light, sandy soils
as they are subject to wind erosion. Instead, plant
cover crops such as sorghum, grain, or sudan grass the
summer prior to tree planting.
Cultivate just before planting, leaving
the strips between rows uncultivated.
Weeds and grasses take much-needed moisture
away from newly planted seedlings.
Eradicate weeds such as Canada thistle
and bindweed before trees are planted; grasses should
also be eliminated.
Preparing Seedlings for Planting
Bare Root: Create a slurry by mixing a shovelful
of soil (or two tablespoons of polymer) in a five-gallon
bucket half-filled with water. Open the bundle and place
seedlings immediately into the bucket submerging the
roots completely in the slurry. Plant as quickly as
possible. Note: Do not store seedlings this
way for more than two hours or root death may occur.
Potted: Remove tar paper completely
from tar paper pot seedlings. For styroblock seedlings,
grasp main stem of seedling near soil level and pull
gently while pushing up through slot in bottom of block.
With piñon, bristlecone pine and Douglas-fir
cut away the styrofoam with a knife. Do not break the
root ball or leave seedlings in sun or wind following
removal from block or tar paper. Seedlings should be
removed from the containers just prior to planting.
Hand Planting
Bare Root: Dig a round hole at least one foot
in diameter. Make a small mound of soil in the bottom
of hole. Take the seedling from the bucket of slurry
and spread the roots out in all directions using the
mound as a root support. Pull loose soil back over roots,
filling the hole half way. Lightly tamp soil down or
fill with water. Then, back fill the rest of the hole
and tamp soil again or re-water. Do not compact the
soil by tamping wet soil! SOIL COMPACTION ELIMINATES
OXYGEN WHICH ROOTS NEED TO SURVIVE!
Be sure the seedling root collar (where
it was planted in nursery) is at the finished soil level.
Watering is the best method to settle the soil, eliminate
air pockets, and provide moisture to the root system.
Potted: Follow the same planting
instructions as for bare root but do not disturb the
roots. Make sure the root ball does not become exposed
after final watering.
Machine Planting
When planting more than 1000 seedings, consider using
a planting machine. These are available for rent from
your local CSFS District.
Instructions on machine planting should be obtained
at the time of rental.
Caring for Trees
Watering
Water each seedling with one to two gallons at planting
time. Check soil moisture periodically by digging
up soil near the plant. Fabric mulch is highly recommended
to conserve water and drip system can be installed.
Check with your local
CSFS District for design assistance.
Fertilizing
Fertilizer use on new seedlings is generally a poor
idea. Do not put any manure in the planting hole.
DO NOT USE NITROGEN UNTIL THE ROOTS HAVE HAD AT LEAST
ONE GROWING SEASON. Nitrogen can be applied the second
year at the rate of three pounds per thousand square
feet of area to be covered.
Mulching
Fabric mulch reduces weed competition and water loss
from the soil and can be obtained from CSFS. Mulch
allows rainfall to pass through the fabric to the
soil, restricts weed growth, and permit oxygen exchange
between the air and the soil. Installation of fabric
mulch on large plantings can be done efficiently by
renting a weed barrier implement available from the
CSFS. Alternative products include wood chips, straw,
peeler shavings, rotted sawdust, and corn cobs. Keep
these alternative products less than three inches
deep to avoid rodent problems.
Weed Control
Eliminate weeds around each seedling for at least
two feet. This may be accomplished by hand pulling,
mulching, mowing (watch out for the seedling), hoeing,
or chemically treating. Roundup® herbicide can
be sprayed, under low pressure, on weeds near seedlings.
Cover seedling with bucket or use another form of
shield to keep spray from the seedling. Use care not
to damage shallow roots, when hoeing.
Wildlife Damage
Weed control will discourage rodents from chewing
seedlings. Commercial tree guards can be purchased
from the CSFS, or use window screen to make a rodent
guard. Use poisons as a last resort. Eliminate pocket
gophers by placing a half stick of chewing gum in
the burrow. Deer or elk may need to be fenced out
of the planting entirely. (An effective deer repellent
can be made by mixing whole eggs with tap water to
form a 20 percent solution; strain and spray on seedlings.
Another homemade method, currently under research,
is use of 6.2 percent hot sauce [Capsicum pepper concentrate].
If deer are really hungry, a combination of methods
may be required.)
Common Causes of Seedling Mortality
| · Roots exposed to hot, dry
air |
· Roots tangled or not spread
out |
| · Improper storage |
· Seedlings planted too deeply |
| · Seedlings planted too shallowly |
· Lack of water / moisture |
| · Low quality / high salt water |
· Seedling mowed down |
| · Grasshoppers |
· Livestock trampling |
| · Rodents |
· Deer and elk browsing |
| · Weed killer spray |
· Weeds not eradicated before trees are
planted |
| · Poor control of competing
weeds/vegetation |
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