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Dwarf Conifers Solve Landscaping Problems |
A common mistake in home landscaping is planting trees and shrubs
that eventually grow too large for the location. Many evergreens are
lovely when small but they dwarf small yards and hide architectural
features of homes as they mature. Often severe and restrictive
pruning is used in an attempt to keep plants in bounds. This usually
leaves a rather artificial looking specimen instead of a plant that
blends with the rest of the landscape.One way to keep all landscape elements in proportion and include
evergreens is to select among the dwarf conifers that are available
in today's nursery trade. A dwarf conifer never attains the stature
that is normal for the original plant from which it was derived.
Dwarf plants occur in several ways. Chance seedling variations
and bud sports (mutations) can stunt plants or branches. Nurserymen
watch for and propagate these variations in an attempt to preserve
the dwarf characteristics. Dwarfing is also accomplished by
asexually propagating branches exhibiting juvenile characteristics.
Species naturally low in habit, such as creeping junipers, are
usually included in the dwarf conifer group for landscaping
purposes.
Dwarf conifers often grow no more than a few inches and
occasionally not more than a quarter inch per year. This is because
dwarfing characteristics alter the plants' growth rate. But keep in
mind that dwarf is a relative term and does not necessarily mean
miniature. For example, a dwarf spruce will be shorter than its
standard relatives but may mature at over 20 feet.
In some dwarf conifers, the needles are stunted in addition to
the growth of the stem, adding yet another dimension to their charm
and character. The slow growth rate of dwarf conifers offers the
distinct and practical advantage that very little, if any, pruning
is required. However, plants must be observed for reverted branches
(branches that return to their natural habit) where vigorous growth
could eventually eliminate the desired form. Such branches must be
removed from the plants whenever they appear.
Dwarf conifers generally prefer a sunny but somewhat protected
location and slightly acidic soil that is well drained. Gardeners
should avoid setting the plants in highly fertile soil as this
condition tends to stimulate growth. Plants with good color and
those with satisfactory annual growth generally do not need
fertilization. A surface application of organic matter, such as
shredded bark or leaf mold, will usually provide an adequate source
of nutrients.
The best time to transplant dwarf conifers is between October to
March, anytime the ground is not frozen but the plants are in a
semi-dormant to dormant condition. Dwarf conifers, like most of
their larger relatives, require a rootball when transplanted.
Gardeners should note that dwarf conifers tend to be expensive
because they are difficult to propagate and uncommon.
(Originally published as "Dwarf Conifers," by Virginia Nathan,
Extension Technician, in The Virginia Gardener Newsletter, Volume 5,
Number 12.)
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