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Hard
pruning in Spring for stem and foliage effect. Hard pruning in Spring for Shrubs that flower
late mid-late summer on current season's growth
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To
rejuvenate old shrubs
or bring back into line shrubs such as Brachyglottis
and Hypericum. Most shrubs can be given a new lease
of life by cutting back hard. However, realise that
the shrub will not stay small simply because you
have given it a short back and sides. It will spring
back into growth with a new enthusiasm. Don't forget
that it now has a root system that was used to
supporting and feeding the old large shrub. It will
'pump' soil moisture and nutrients to ensure that
the shrub gets back to 'normal size' as soon as
possible.
Cutting
shrubs back hard to near the ground
is the normal procedure for producing masses of new
shoots and lush colourful foliage. It looks savage -
but it works. The pruned shrub will normally regain
it's normal - size prior to pruning - in the growing
season Spring to Autumn.
If you have any doubts as to whether a particular shrub will respond by re growing, then simply cut out one third of the branches to be removed. Once they start shooting out near to or at ground level, then you can safely cut down the remainder of the shrub.
A huge framework of new branches
is the result
Eucalyptus & Cotinus can be treated this way to (a) restrain the size of the shrub and (b) to produce spectacularly coloured foliage throughout the growing season. The same is true of Catalpa bignonioides Aurea.
The pruning should be carried out in early Spring (March) and a dressing of Fish Blood & Bonemeal - or your own favourite balanced fertilizer - to help the plant produce the strong growth required.
Tamarix pentandra showing previous
spring's pruning cuts. This Spring should
see all of the shoots cut back to within
5cm (2in) of their starting point