Spring means that the garden centers are packed with people,
and car trunks are packed with plants. Everybody has dirt on their
knees, dirt under their nails, and are excited about gardening. To
make certain that this excitement yields positive results, let's
discuss the basics of spring planting.
Installing new plants and having them grow successfully is not
difficult, nor is it as complicated as some would have you think.
Is it as easy as just digging a hole and setting the plant in? Yes,
it certainly can be. I won't get into bed preparation, as I have
covered that in previous articles that are still available.
Let's start with B&B plants. B&B is short for balled in
burlap. Closely examine the ball on the plant that you have
purchased. Did the diggers wrap twine around the ball to hold the
plant secure? If they did, you should at least cut the twine and
lay it in the bottom of the hole, or remove it completely. Pay
close attention around the stem of the plant where it emerges from
the root ball, as diggers often wrap the twine around the stem
several times as they tie the ball. This is extremely important
because if the string is nylon, it will not rot and will girdle and
kill the plant two or three years from now.
When B&B plants are stored in the nursery for extended
periods of time it becomes necessary to re-burlap them if the
bottom starts to rot before the plants are sold. If the plant that
you buy has been re-burlaped it is possible that there could be
nylon stings between the two layers of burlap, check the stem
carefully. As long as the nylon string is removed from around the
stem of the plant, it is actually harmless around the rest of the
ball, and you do not have to remove it.
Is the root ball wrapped in genuine burlap, or imitation burlap
made of a non-biodegradable plastic material. Genuine burlap will
rot quickly underground and does not have to be disturbed before
planting. If you're not sure or suspect a poly type burlap you
don't have to remove it completely, but should loosen it around the
stem of the plant and cut some vertical slices around the
circumference of the ball.
Now here's the critical part. What kind of soil are you
planting in? If your soil is heavy clay, I highly suggest that your
raise the planting bed at least 8” with good rich topsoil. If you
can't do that for some reason, install the plant so that at least
2” or more of the root ball is above the existing grade and mound
the soil over the root ball. Keep in mind that plants installed
this way could dry out over the summer, but planting them flush
with the ground in heavy clay can mean that the roots will be too
wet at other times of the year.
The “experts” suggest that when planting in clay soil you
dig the hole wider and deeper than the root ball and fill around
and under the plant with loose organic material. That sounds like a
really great idea doesn't it? Some of these experts also recommend
that you dig the hole extra deep and put a few inches of gravel in
the bottom for drainage. Where do you suppose they think this water
is going to “drain” to?
Keep in mind that most B&B plants are grown in well drained
soil. That means that the soil in the root ball is porous and water
can easily pass through. Now imagine if you will, a root ball about
15” in diameter, setting in a hole 30” diameter. All around and
under that root ball is loose organic matter. Inside of that root
ball is porous soil. Now along comes Mother Nature with a
torrential downpour. There is water everywhere, and it is not going
to soak into that hard packed clay soil, so it is just flowing
across the top of the ground searching for the lowest point. When
it reaches our newly planted tree surrounded by loose organic
matter, it is going to seep in until the planting hole is
completely full of water. (Remember my article on getting rid of
standing water and the French drain system?)
By using this planting technique we have actually created a
French drain around our poor little plant that can not tolerate
it's roots being without oxygen for long periods of time. Because
the bottom of this hole is clay, even though we've added gravel for
drainage, there is nowhere for the water to go, and this plant is
going to suffer and likely die.
If you can not raise the planting bed with topsoil, and are
planting in clay soil, I recommend that you install the root ball
at least 2” above grade and backfill around the ball with the
soil that you removed when you dug the hole. Backfilling with the
clay soil that you removed is actually like building a dam to keep
excess water from permeating the root ball of your newly planted
tree. The plant is not going to thrive in this poor soil, but at
least it will have a chance to survive.
No matter what kind of soil you have, be careful not to install
your plants too deep. They should never be planted any deeper than
they were grown in the nursery. Planting too deep is a common
problem, and thousands of plants are killed each year by gardeners
who just don't understand how critical planting depth is.
Staking newly planted trees is always a good idea. If your new
tree constantly rocks back and forth when the wind blows it will
have a very difficult time establishing new roots into the existing
soil. Stabilize the tree with a stake. You can use a wooden stake,
a fence post, or for small trees I often use 1/2” electro
magnetic tubing, (conduit), available at any hardware store. You
can secure the tree to the stake with a single wrap of duct
tape.
In about six months or a year the sun will dry the glue on the
duct tape and it will fall off. Check the tape to make sure that it
has fallen off. You don't want to girdle the tree with the tape.
Container grown plants are much easier. Follow the rules for depth
of planting as described earlier. Before gently removing the plant
from the container check the drain holes in the bottom of the
container for roots that might be growing out the holes. If so cut
them off so they will not make it difficult to get the plant out of
the container. The easiest way to remove the plant from the
container is to place your hand over the top of the container and
turn it completely upside down and give it a gentle shake. The
plant should slide right into your hand.
Examine the root mass as you hold it in your hand. Sometimes
when plants have been growing in a container for a long time the
roots start to grow in a circular pattern around the root mass.
This is not good, and you should disturb these roots before
planting so you can break this circular pattern. You can take a
knife and actually make about three vertical slices from the top of
the root mass to the bottom. This will stimulate new roots that
will grow outward into the soil of your garden. Or you can just
take your fingers and loosen the roots that are circling the root
mass and force them outward before you plant them.
What about fertilizer, bone meal, peat moss, and all those
other additives they are going to try and sell you at the garden
center? Raise your planting beds with good rich topsoil and forget
about the additives. Be very careful with fertilizers, they can do
more harm than good. I landscaped my house 12 years ago and I
haven't got around to fertilizing the plants yet, and have no
intention of doing so. They look great.
As far as bone meal and all those other soil additives are
concerned, don't get too caught up in all that stuff. The only
thing that I know for sure is that they will make your wallet
thinner, but I don't think you'll see a difference in your plants.
Did I mention planting in good rich topsoil?
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