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Shrub Hedges
By
Michigan State University - Extension
To
shape a hedge, begin pruning when plants are small
and
continue throughout the life of the plants. A hedge
requires
more pruning than other plants because a formal
shape
is desired. In general, a hedge
should be pruned so
that
it is broader at the base than at the top.
Both
deciduous and evergreen plants are used for hedges,
and
the methods of pruning vary somewhat.
Deciduous
Hedge
Occasionally
the lower part of a hedge consists of old
woody
stems, bare of leaves--all the leaves and flowers are
produced
at the tops of the plants. A
spirea, privet or
forsythia
hedge can be cut back to the ground in late
winter.
The new growth that develops can then be shaped
as
recommended.
Some
plants used for a hedge, such as burning bush and
viburnum
cannot be cut back this drastically but will
tolerate
a gradual cutback. Cut back one
third of the
oldest
woody stems to the ground. This
will allow young
growth
to develop. Cut back the other
growth one-third to
one-half
or more to encourage branching. If
this is done
over
a period of two or three years, it will be possible
to
get the hedge in shape.
Evergreen
Hedge
Remember
to prune to keep the base broader than the top.
Pruning
during the summer to remove feathery new growth is
all
that is usually required. Certain
evergreens, such as
yews,
are more suited for growing as a hedge than others,
so
select plants carefully.
Screen
Plants
Deciduous
plants used for screening should be pruned as if
they
were individual specimen plants. Evergreens
used as
screens
are generally the larger types, such as spruce,
pine,
arborvitae, hemlock and upright junipers. Most
of
these
plants should be allowed to grow naturally.
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