Most
Australian plants prefer good drainage, meaning soil which is
open and well-aerated so that water flows freely through the soil
and will not lie around for extended periods, causing rotting
of root systems.
Such areas can be achieved by mounding up plant beds a minimum
of 30 cm above surrounding areas.
The soil for these mounds can be
purchased from garden centres or excavated from other areas of
your garden where you my wish to create ponds, sunken bog gardens,
or pathways/walkways.
If the soil has high clay content, add a liberal amount of gypsum
or liquid ground breaker or Gyp-flo. Planting can take place immediately
after application.
If the soil is very sandy, add some humus to help retain moisture.
Planting
Procedure
As long as you are able to water over the summer months, planting
can take place all year round.
Plant your shrubs as soon as possible after purchase. Plants are
difficult to look after in the nursery pots and it is easy to
lost a plant from being over- or under watered once it has left
the nursery.
Dig your planting hole much bigger than the size of the pot –
say at least twice as deep and three times the diameter. This
is particularly important when planting into an old established
garden bed where soil preparation is often minimal.
Sprinkle a light dressing of native
plant fertiliser over the excavated soil, then backfill the hole
with some of the fertilised soil.
Remove the plant from it’ s
pot by tipping it upside down and placing a hand over the soil.
With your free hand, give the rim of the pot a sharp upwards tap
and the pot should come away easily.
Gently tease out the roots only if the roots are tightly coiled
and form a solid mass around the outside edge of the pot.
Plant the shrub so that the top
of the soil ball is level with the surrounding garden bed. Don’
t put your soil up around the stem of the plant as this will cause
rotting of the stem. Backfill around the shrub with the remaining
soil and gently firm in by hand.
Immediately water in the plant with a bucketful (10 litres) of
water.
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After
Care
While most established plants
will survive over summer with little or no watering, you
will achieve considerably better growth with regular waterings
over dry periods until plants establish themselves. Water
deeply at weekly or fortnightly intervals in preference
to shallow daily waterings.
Mulching your plants will assist
in conserving soil moisture as well as keeping weeds at
bay. A wide variety of mulches are available from garden
centres and are all useful.
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Fine gravel and coarse river sand
are both excellent mulches and have an advantage over organic
mulches in that they do not
break down.When applying mulch, do not place close to the stem
of the plant as the plant may rot.
Feeding of Australian plants is
generally not required once they are fully established, although
sandy soils often benefit from a regular light application of
a phosphorus-free fertiliser. Many Australian plants object to
fertilisers with high levels of phosphorous, so use such fertilisers
with extreme caution.
Pruning is always most safety conducted
immediately after flowering when a light prune will help to prevent
woodiness and should increase the number of flowers for the following
year. It is important to prune plants from an early age rather
than trying to prune a plant that has been in the garden for a
few years and is already woody.