Tips for Preparing
a Planting Bed
By Michael J. McGroarty
If you are preparing
beds for landscaping around your house this article should simplify
the process for you. I say that because of everything that is written
about this subject, some of it is accurate, some of it is just plain
wrong, and much of it is much more complicated than it needs to be.
I like to think of myself as Simple Simon. I find the easiest, yet
most effective way to do things, and they work.
Let’s assume that the area where
you are planning your bed is now planted in grass. How do you get rid
of the grass? Chemicals or no chemicals? Chemicals are easy, so we’ll
look at the chemical method first.
My favorite chemical for killing grass
and weeds is RoundUp, and used properly it is effective. Rule number
one: Read the label on the package, and mix the chemical exactly as
recommended by the manufacturer. Rule number two: Assume that every
plant that the RoundUp touches is going to die. It is a non-selective
herbicide.
The first thing you need to do is mark
out where your planting bed is going to be. Spend some time on this
step. If you are landscaping around your house, give careful consideration
to what is going to be planted in the bed, and then decide how large
each plant is going to be when fully mature.
You can keep plants trimmed to a certain
size, but be realistic when you make these estimates. Trust me when
I tell you, this is the number one mistake made by Do-it-Yourself landscapers.
People are just afraid to make those beds large enough.
Typically, a bed should never be narrower
than 42”, and corner beds should be 12’ in diameter. Islands.
If you make those little tiny island beds that I see everywhere I am
going to come over to your house and snap you with a wet towel! The
island bed in your front yard should be 20’ to 40’ long,
and a minimum of 12’ in diameter on at least one end.
The easiest way to mark out your planting
beds is to buy a can of marking paint at the hardware store. Unlike
most spray paint, this only works when the can is inverted, and it is
designed specifically for painting lines on the ground. They even have
cans that spray chalk instead of paint. I’ve always used the paint,
it holds up better if it gets wet.
Once you have the outline of the bed established
and marked, mix up some RoundUp and spray all the grass and weeds inside
the bed area. Do not put RoundUp in a sprayer that you intend to use
for other purposes. You need a sprayer that is dedicated for the use
of herbicides. When applying the spray, be very careful not to let the
spray drift onto the grass and other plants that you do not want to
kill.
To minimize spray drift, adjust the spray
nozzle so the spray pattern is narrow and the droplets are larger. A
wide, fine spray pattern is sure to drift outside of the intended area.
Also keep the pressure in the sprayer quite low. Pump it just enough
to deliver the spray. High pressure causes the spray to atomize and
drift. Apply just enough spray to wet the foliage. If you have liquid
dripping off the blades of grass, you are applying too much. More is
not better.
Once sprayed, be careful not to step in
the area that has been sprayed. Many people have had golden footprints
across their lawn because they forgot and walked through what had been
sprayed.
This is the difficult part, and the part
that many people do not get, so pay close attention. The only way that
the RoundUp can possibly work is if you leave it alone. Did you get
that? Once you apply the RoundUp, don’t do another thing with
that bed for 72 hours. That’s three very long days. I know you’re
anxious, but this is the price you pay for not planning ahead.
RoundUp is a systemic herbicide, which
means that it has to be absorbed by the plant, then translocated throughout
the plant. It takes three days for that to happen. If you go digging
and chopping, you might just as well skip the spraying step. Go build
a compost bin while you’re waiting.
After three days the weeds and grass are
going to look as healthy and happy as ever. Don’t let ’em
fool ya. They’re as dead as dead can be. Providing the RoundUp
didn’t get washed off by rain within the first 24 hours of the
waiting period. Now you can dig and chop to your heart’s content.
However, the only digging that I do is
to go around the edge of the bed and strip the sod back about 15”.
Just peel off about 1” and flip it into the center of the bed.
This makes it easier to edge and mulch the bed if you get the sod out
of the way. Now for the non- chemical method.
Mark out the outline of the bed as described
above. Strip the sod back 15”, just like above. Since you aren’t
using any herbicides I would dig down about 1-1/2” when removing
the sod from the edges. Take the sod you stripped back and lay it in
the center of the bed upside down and pack it down firmly. Now take
newspaper or brown paper grocery bags and cover the entire bed area.
Use 9 layers of newspaper. No matter what method you used, chemical
or non chemical, you are now ready to fill the planting bed with topsoil.
Put 8 to 12” of good rich topsoil
in the bed. Make sure the soil is higher in the back, closest to the
wall, so the water drains away from the building. If you are creating
an island planting make the center of the bed the highest point. Make
sure the topsoil you buy is well drained and rich in organic matter.
Buying topsoil is a tricky game, you’ve got to be careful and
shop around. Topsoil is one item that you do not want to order over
the phone, sight unseen.
This is what you are looking for when buying
topsoil:
Topsoil that is rich in organic matter
will be very dark in color. If the soil is light in color it is probably
just fill sand. The other thing you’ve got to watch for is how
well drained the soil is. Topsoil that has a clay base is poorly drained
and sticky, and your plants will not be happy at all. They might even
die if they are too wet. Once a clay based topsoil dries out it gets
very hard.
Today most topsoil is run through a screener
to remove the clumps, rocks, roots, and sticks. There is nothing wrong
with buying unscreened topsoil, especially if you’ve visually
inspected it and have found it to be of good quality. Actually, really
good topsoil shouldn’t have to be screened, but there is little
of that quality topsoil to be had.
When you visit the yard where the soil
is stockpiled, scoop up a handful of the topsoil and run it through
your fingers. If it seems to be grainy, it is probably good soil. But
if it appears to be tiny round balls that can be smashed between your
fingers, it is probably a clay based soil that will trap water during
rainy seasons, and get as hard as a rock when it’s hot and dry.
Pay attention to how the soil is screened.
Some machines just shake the soil over a set of screens to separate
the debris, and others actually shred the soil. If the soil needs to
be shredded, you don’t want it. Look closely at the pile that
the raw soil is coming from. If the soil in the raw pile is as hard
as a rock, that’s what the screened soil is going be once you
get it in your beds. If it appears to be fairly loose, it’s probably
good soil.
Put 6-8” of topsoil in your beds.
You are now ready to plant. Did you notice that I didn’t get into
rototilling and all kinds of extra work? Nor did I suggest that you
add bone meal or any of those other goodies that the garden centers
sell. I skipped the part about checking the pH too. pH is important,
but I’ve found that good topsoil almost always has a suitable
pH.
I’ve got a confession to make. In
almost 30 years of growing, planting, landscaping and the like, I’ve
never tested the pH of the soil on any project that I was working on.
Is that smart? I don’t know, but I’ve been successful in
my efforts, and I have landscaped several hundred homes and grown tens
of thousands of plants.
It’s
something to think about. What I’m really trying to say is don’t
get caught up in too many details, and be careful who you take advice
from at those garden stores. Many of those sales people were flipping
burgers last week.
Michael J. McGroarty is the author of this article. Visit his most interesting
website, www.freeplants.com and
sign up for his excellent gardening newsletter. Article provided by
gardening-articles.com
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