18 Feb 2008 04:37:51 | Michael J. McGroarty
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Early spring is a great time for transplanting trees and shrubs,
but you must do so before they wake up. Transplanting a plant is
a very traumatic experience for the plant if it is awake. It’s
like doing surgery on a person while they are awake. Dormancy
starts in the fall as soon as you experience a good hard freeze,
and the plants remain dormant until the weather warms up in the
spring. This is when you should transplant, while the plants are
dormant.
You can transplant in the spring up until the plants leaf out.
When the buds are green and swollen you are usually safe to
still transplant, but once the leaf develops, you should wait
until fall. When transplanting you can dig the shrubs out bare
root, just make sure they are out of the ground for as short a
time as possible, and keep the roots damp while out of the
ground.
Make sure there are no air pockets around the roots when you
replant them. When possible, it is always better to dig a ball
of earth with the plants when you transplant them. The rule of
thumb is 12” of root ball for every 1” of stem caliper. If the
diameter of the stem of a tree is 2”, then you should dig a root
ball 24” in diameter.
Don’t be afraid of cutting a few roots when you transplant. Just
try not to cut them any shorter than the above guidelines allow.
Cutting the roots will actually help to reinvigorate the plant.
It’s a process simply known as root pruning. When the roots are
severed, the plant then develops lateral roots to make up for
what is lost. These lateral roots are more fibrous in nature,
and have more ability to pick up water and nutrients.
Some nurseries drive tractors over the plants in the field
with a device that undercuts the roots of the plant just to
force the plant to develop more fibrous roots. This makes
transplanting the plant the following year much more successful,
and makes for a stronger and healthier plant.
The old timers root pruned by hand by forcing a spade in the
ground around their plants. If you have a plant in your
landscape that is doing poorly, a little root pruning while the
plant is dormant could bring it around. It’s worth the effort.
Michael J. McGroarty is the author of this article. Visit his
most interesting website, http://www.freeplants.com and sign up
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About Author :
Michael J. McGroarty has more than 30 years experience in the
landscape gardening/nursery industry. He's spent the better part
of his life on his hands and knees in the dirt working with
plants and his hands-on experience allows Mike to write in a
manner than many gardeners find to be helpful and beneficial.