Site
Assessment
Site
Preparation & Establishment
Design
Pointers
Clipping
Theory
Clipping
Tools
Clipping
Technique
Simple
Shapes
Complex
Shapes & Figures
Problem
Solving
Growing
Topiary
Site Preparation
Various factors come into play in the design choice of site, but once
decided it is up to us to give our topiary the very best start in life
there.
To ensure their continuing success we must do all we can to improve the soil.
It is relatively easy to alter deep soil conditions before planting, but nigh
on impossible later.
Good
drainage is just about the most important factor to be considered here.
If
it is OK then that is excellent, if it is not then proper drainage must be provided
before planting or subsequent death of the topiary will be the result. Wide and
deep cultivation, incorporating well rotted organic matter will improve the soil
structure and enhance early growth.
Planting
Containerized
plants can in theory be planted year round, but need close attention to their
watering needs if planted during a dry Spring or Summer.
Bare root or root-balled
plants are usually planted when dormant. For
evergreens the best time would
be late Autumn or alternatively, very early Spring.
Containers
or root-wrapping should be removed and damaged roots cut back.
In the case
of container grown specimens, some roots should be teased out of their tight circular
growth pattern. In all cases, the root ball should have been soaked prior to planting.
It is important that they are not planted too deeply, but at the same depth that
they were in the pot or nursery bed. Care should also be taken to firm them in
well, ensuring from the start there is a close link from roots to soil.
Where
root systems may have been damaged on moving, the main hazard for the plants will
be from desiccation until a new root system develops. Consider sheltering new
plantings from drying winds and sunshine or pruning away a proportion of top growth
to achieve a new balance with a smaller root system.
After-care
Often, during the first season following transplanting, trees and
shrubs of all sorts, and of course topiary in particular, will make very little
top growth. This should not be seen as a problem as they are usually concentrating
their energies into producing new root systems.
Close attention should however
be paid to ensuring plants do not dry out during their first season (or possibly
longer). Bear in mind that although the surrounding soil may be wet, until a plant¹s
new roots succeed in growing out into it, it will be limited to the same small
pot-sized root ball for all its water provision!
Particularly in the early
years, competition from garden plants and weeds should be strictly discouraged.
Keep as wide an area around the specimen free of all growth as you can.
Formative
pruning and training
During the first season following planting,
little top growth will be made as the tree or shrub establishes itself and builds
a new root system in its new position. After a year though, we can approach it
with a view to making the first formative cuts.
The most important thing
to establish at this stage is the basic framework of growth from which all the
shapes final surfaces will hang. This often means in practice, choosing a central
leader to be allowed to grow up whilst removing or reducing any competitors. It
may be that half the growth of a plant has to be removed at this stage, but that
is fine so long as the part that is left suits our purpose.
It
is important too, to emphasise the ideal shape of wide at the bottom, tapering
to the top - thus ensuring as much light as possible reaches all parts. Whatever
the final size and shape of the form, it may well be grown on most of the way
to that size as a cone. The strong central leader is all important to most shapes
and shoots and branches should be allowed initially to grow out from it - even
in areas ultimately destined to have bare trunks.
Even when removed later,
they will have served to greatly strengthen and thicken the main stem.

When topiary
is fully grown, our aim should be to clip off very nearly all the current years
growth each season, to retain virtually unchanged our chosen forms. Young plants
that are being developed - that is grown up to size - also need to be clipped
once a year. Here though, they need to be cut back much less severely - leaving
anything up to half the annual growth intact.
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