| |
Most
people consider laying a lawn as a Saturday afternoon's
job. As long as you have soil and seed you're away.
Mow lawn when the grass grows and hey presto you have
a lawn. As we know here at Townsend Turf, it is not
quite that simple so we have outlined a few tips to
help you achieve the perfect lawn. So
in turf
reality the perfect lawn is weed free, consistent grass
cover, lovely and green with smooth flowing contours.
So believe it or not, it is the ground level or shape
that's so important. Get this part right and the rest
is easy.
CAN
YOU DO IT ????? YES YOU CAN !!!!!!
To
Start With You Will Need :
Wheelbarrow
Shovel
Spade
Broom
Rake - ('Wolf Tools' make excellent ground preparation
rakes. Their Long Span
rakes have close tines for creating
a seed bed and moving soil around efficiently. They
also bury the seed effectively because the tines are
curved not straight as are most
conventional rakes)
Scratch Tool - a three pronged garden cultivator for
cultivating hard bumps to loosen soil
(Wolf Tools also make these)
Seed & Fertiliser - (see your local seed merchant/garden
shop for suitable type and variety
for your area and needs)
Hand Roller - to firm up large areas
Screed - you will probably have to make it but its well
worth it!! It does what a rake just
can not do and sharpens up the look heaps. See simple
instructions for making this
basic piece of equipment.
Optional
:
Walk behind power cultivator for cultivating large areas
or bumps when it is
impractical to use the scratch
tool. Usually available at hire outlets.
Windbreak cloth and ground staples/anchors - to aid
germination. Only economical on
small areas and for the fusspots.
A Builder's Level
NEW
LAWNS
Clear the site of all debris: stones, sticks etc
Sub grade
If starting without topsoil - that is you have a clay
site, it is a great advantage to prepare this sub grade
by leveling as accurately as possible as this will minimise
the topsoil required and also ensure that the depth
of topsoil is consistent which will aid a consistent
grass cover. (When topsoil depth varies eg: some at
1 inch (25mm) and other areas at 6 inches (150mm) you
end up with the surface looking patchy because the shallow
areas will dry out quicker, stress the grass, and there
isn't the depth of soil to maintain a healthy plant
and consistent color.) The ultimate aim is to mirror
image your surface to your base. Time spent at this
stage to achieve a level sub grade will go a long way
to minimising the surface (grass) maintenance. It helps
avoid ponding issues with muddy areas, dry patches and
compaction differences down track once the topsoil has
settled. If uneven sub grade, the surface can settle
unevenly resulting in an uneven surface.
Level sub grade with scratchy tool or powered cultivator
for the bigger bumps. Transfer the excess material to
the hollows. Level and roll in to compact and avoid
settling. Once it appears level from standing, then
get down with your ear almost touching the ground (i.e.:
2 inches (50mm) from the ground). It is only by doing
this that the whole topography of your site will form
before your eyes and you will become a professional
at bump removal. Repeated sitings from different angles
will expose all bumps that need to be removed. This
is the essence of level/flat lawns or detecting inconsistencies
of flat facets when it is to be a flowing undulating
contour!!
90% of people will not get down and look from ground
level!! It is the professional's main tool!!
Ensure your level of your sub grade falls away from
buildings. You will improve your drainage with a correctly
shaped sub grade. A builder's level on a length of timber
placed on ground is a tool to check your grades.
Topsoil
You will require 4 inches (100mm) to 6 inches (150mm)
of topsoil cover. In calculating the quantity of topsoil
required eg: length x breadth x depth and an extra 40%
to allow for consolidation i.e.: settling. Topsoil does
settle from its purchased loose volume bought state!
- Do not be deceived!
Make sure your topsoil is free of foreign matter eg:
stones, glass, vegetation etc. Cultivated or screened
topsoil is the easiest to work with - it will spread
easy and form a seedbed tilth more quickly.
To ensure topsoil depth consistency, insert pegs as
level indicators.
Load/barrow on the topsoil and rake out looking
for bumps and hollows, tread with heel in around
path edges etc so as to minimise settling. Remove
pegs. Roll with hand roller once over. Please note
: it does not have to be an aggressive enormous
roller. The purpose of rolling is to consolidate
soft spots and to expose bumps. Repeat the 'siting
process' on your hands and knees from various angles
raking bumps into the hollows until confident that
the surface is satisfactorily level. Please note
: if you are contouring - i.e.: shaping undulating
ground, check by 'siting' that you have no flat
facets of too sharp movements in your rolling shape.
Roll lawn with a hand roller or heel in soil (tramping
in by heel to heel). Only roll when soil is dry
otherwise you will unnecessarily compact the soil.
By rolling in or heeling you will discover soft
spots and some more bumps might appear! Don't despair,
the next step will see a perfectly leveled area
ready for seeding, laying turf or whatever. The
idea of rolling is to consolidate and aid the settling
process. You are not trying to make a concrete driveway!
So you only need to roll once or twice over the
area. The roller may also be useful in crushing
lumps. If your soil ends up with lots of marble-like
lumps, consider watering and then leave to dry until
not sticky. Then roll or rake and the lumps should
shatter. The idea is to have the majority of the
soil granules to a size less than 1/4 inch (5mm).
Screeding
The purpose of screeding is to discover more humps
and hollows that you thought were all gone. By pulling
the screed along the ground from one end to the
other, you will discover soil building up along
the leading edge and then perhaps disappearing when
you encounter going over a hollow. When a little
soil is right along the leading edge - without disappearing
- wherever you drag the screed in different directions,
you then know you have achieved a perfectly leveled
area. Check for hard areas appearing while screeding.
This indicates loose soil being removed from a bump.
Hard areas that have been exposed need to be loosened
up with the three pronged scratchy tool or rake.
Then rescreed. This process may need to be repeated
several times. Check that there is a loose even
tilth of 1/2 inch (12mm) over the entire area. You
will understand therefore if you have over rolled,
it will be difficult to bring up to a seed bed tilth.
If at any time in the construction or leveling process
the soil is too hard to rake up, consider soaking
the hard area and then let dry to a non sticky state
before raking with scratchy or rake. Soil needs
to be dry to screed. Your area is now ready for
rolling out the turf, or to sow.
|
 |
| Tramping
by heel to heel |
 |
| Settling
loose soil with a hand roler |
 |
| Raking
bumps into hollows |
 |
Home
made screed made from
4X2 wood or similar |
|
Seed
Get advice from your local supplier for the variety best
suited to your locality and the quantity required.
Sowing
People notoriously throw seed down on the ground to
spread it. This dollops seed unevenly and therefore
you will get a patchy uneven effect once germinated.
Make sure it is calm weather and throw your handful
of seed in an upwards arc as if you were throwing a
discus. You will notice that the seed will fall evenly.
Take a step back and repeat the process until the area
appears to be evenly covered. Check edges and corners.
They may require seed to be dribbled on these areas.
Spread fertiliser in the same way. Rake it in - preferably
with a Wolf Tool long span rake. If you do not have
one, use a leaf rake so as to lightly mix seed and soil
together to bury the seed just under the surface. Take
care to lightly rake so as not to move the surface soil
around excessively.
Windbreak Cloth
As
an optional extra to speed up your lawn growth, you
could use aerated windbreak cloth. This provides the
advantage of speeding up the germination process, makes
all grass strike consistent, retains surface moisture
longer and prevents rain washing out seed on sloping
ground. Simply cover the ground and peg down. Uplift
cloth when the grass is protruding through by one inch
(2.5cm). When using windbreak cloth in hot weather,
check that the surface is kept moist otherwise the young
grass shoots will quickly die due to heat stress. As
the cloth draws the heat, it is vital that it is monitored
in dry weather and watered if required to maintain dampness.
Watering
Many people fail at this stage. The purpose of watering
successfully is to keep the surface damp at all times!
This could mean watering many times a day. Do not flood,
let water pond or move across the surface otherwise
you will get that patchy uneven washed out look! Dampness
also discourages birds who like nothing better than
a newly sown area to dust bath in. Continue your watering
even after the initial seed strikes.
Mowing
Let the surface dry a little before mowing so as
not to leave lawn mower wheel ruts. It is very discouraging
to loose the levels after all this work!! Top only -
don't scalp. Only take one third off. The purpose of
the initial cuts is to thicken the grass not a matter
of cutting to your optimum height. First cut when grass
is 1.5 inches (4 cm) and cut off .5 inch (1.5cm). It
is detrimental to the grass development to let grass
grow long before initially mowing. Don't stop watering
just because it is at the mowing stage and green! It
is still juvenile and very water dependent. Keep up
your watering until approximately three mowings having
been done. Dryness stresses the grass so thereafter
water and fertilise to maintain health as you would
a garden.
|