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The
Venus Flytrap Dionaea Muscipula
is a plant that eats insects, it is hence a carnivorous plant.
Its main diet are flies, caterpillars and spiders but it must be said
that the plant will eat any small insect that is unlucky enough to get
trapped that the plant can use for nutrition.

In the
image below we can see a very nice foliage of Venus Flytraps and observe
how brightly colored the inner leaves are, this also helps to attract
certain insects that are drawn to plants because of their color.
The Venus Flytrap is very industrious !

The plant literally
traps insects and then consumes them, it does this via two large open
leaf type appendages that have several small sensitive trigger hairs
inside and when an insect agitates them, this triggers the flytraps
mechanism and the leaves snap shut trapping the insect inside.
The hairs have to be repeatedly agitated by the insects legs or wings
and not just touched once or twice, this is to prevent the flytrap from
wasting energy by snapping shut every time a small leaf, berry, raindrop
or any non edible thing touches it.
The trigger hairs can
be seen in the image below, in this plant there are eight of them, ready
and waiting to signal the trap to close on its prey.

The Venus flytrap is
actually a member of the herb family, it can grow from four to seven
sets of traps from its soft pliable stem that accentuates not from roots
but instead from a bulb in the damp earth.
The leaves can grow to
a size of 10 centimeters across depending on its exact environment
relating to specific humidity and the time of year.

The trapping leaf is
split into two connected at the base that forms the trap, the inside of
the leaf is coated with a sweet nectar covering that attracts the
insects to it and the trap will snap shut on the insect in 1/10th of a
second.
For people who want to
cultivate their own Venus Flytraps then, it is worth mentioning here
that the speed in which a Venus Flytrap actually closes is also a good
sign of its general health. The faster it is, the better the state of
its general health.
There are no muscles or
tendons in the plant that make the leaves close, it is thought that that
leaves close under some form of built up elastic sprung energy assisted
by its sap that may be under pressure. The edges of the leaf trap have
got appendages called Cillia and these will mesh together
when the trap closes.
Below is a nice image
that illustrates quite well these finger like appendages, these create
something similar to the bars of a cage when the insect is initially
trapped. It is also suggested that they also allow smaller insects to
escape that may not be big enough to be beneficial to the plant and that
these appendages 'grade' the required size of insect that
the plant requires.

In a way
its as if the leaves are a mouth and stomach all in one, as the
food goes into the trap or mouth that closes and then its not swallowed
but digested from there.

Below a small grub
crawls across the trap, it doesn't close as the grub is too small to
trigger the hairs and hence its safe passage is guaranteed and the Venus
Flytrap will not waste time and energy on what would not be a very
nutritional meal for it.

It may surprise many to
know that the Venus Flytrap is not a tropical plant and does not come
from the Amazon or any tropical rain forest as one would expect. The
Venus Flytrap is in fact only indigenous to the North and South Carolina
wetlands in the USA, where it likes to live in peaty swamps and marsh
lands.
The Venus Flytrap is
not native to any other part of the world whatsoever, however, it may
now actually be seen in other parts of the world but only because they
have been deliberately planted there.
The plant is quite
small and grows slowly. They can be potted and grown anywhere
around the world as long as they get the right amount of light, water
and humidity.
The environment is very
important to this plants survival, they can survive mild spells of cold
in the winter and some horticulturists state that the Venus Flytrap
actually becomes stronger during cold winter months as it goes into a
sort of hibernation or suspended animation mode where as its metabolism
slows right down.

Putting the Venus
Flytrap into perspective then, the Flytrap gives off a sweet nectar
scent that attracts the insect to it, when the insect agitates the
trigger hairs inside the trap the trap will quickly snap shut upon it.
The insect will not be
able to escape when the trap closes, even though initially it only
closes on the insect to restrict its movement, but after a few minutes
the trap closes completely leaving no gap at all, the insect will be
sealed in...airtight.
This is actually quite
intelligent and scientific of the plant as it understands about germs,
because all of the fresh nutrients will be kept in and any bacteria
created from air in conjunction with the dead insect is kept locked out.
Nature is often quite ingenious and well thought out.
Below we can see that
the two Venus Flytraps in the center of the image have closed up,
presumably after the owner has fed them some insects. This is done
by carefully agitating the plants trigger hairs with the dead insect in
a pair of tweezers, when the trap closes the feeder can then sharply
pull out the tweezers.
The fact that there is
no further movement from the insect inside is ignored by the plant, the
leaves are now shut and will remain that way for at least 12 hours.

The insect is slowly
digested within this leafy tomb over a 5 to 12 day period.
It is digested via a concoction of enzymes and light acids that are
secreted through the glands of the inner leaf.
The Venus Flytrap is as mentioned earlier quite clever too, evolution
has taught it that the dead insect will start to decay and decompose
over a 12 day period, so to inhibit this, the Venus Flytrap will secrete
a preservative in the enclosed trap and the insect will be incubated
like this all the time its being digested.

If this little frog
isn't careful whilst its scrambling around the outside of this Venus
Flytrap then it will become the plants next free lunch.

The Venus Flytrap will
not digest hard materials like a spiders outer body and legs which is
actually an exoskeleton or a little beetles outer shell, these will be
ejected after the initial nutritional goodness from the insects soft
tissues have been absorbed.
After full digestion of
the insect has occurred the trap will open up its leaves wide and the
remnants will either fall out, get washed away by the next rain fall or
get blown out by the wind.

If
something like a berry, dead leaf or other article falls into the trap
and it is enough to make it close, then the offending article is
'spat' out 8 to 12 hours later. If an insect is slightly too big
for complete closure of the leaves, even if it was initially killed it
is still later rejected, if a larger insect is not rejected then the
trap will start to absorb the multiplying bacteria from the dead insect
and this will kill the trap, it will die, rot and fall off.
Dinner
may be just a little too big for the trap in the image seen below, but
sometimes the plant will persevere with it, like a monkey
grabbing hold of a nut, once its got it, it won't let go !

Dinner looks just right
here and as soon as the fly agitates one of the hairs then its fate will
be sealed, literally !

Growing your own Venus
Flytrap is easy if you follow all of the correct procedures. Some
of which I will cover here.
Firstly you must get
the plants environment right, they should be grown in very bright light
but not placed in direct sunlight as this will dry them out and kill
them. A terrarium as seen below is an excellent choice and would
provide a constant supply of moisture and be warm enough for growth when
kept at between 70 and 95 degrees Fahrenheit.

A terrarium is where a collection of the same or similar like plants can
be grown together, a terrarium can be made out of a fish aquarium,
goldfish bowl, a big jar or other suitable vessel of the same style.
Its like creating a miniature jungle where the plants are kept hot and
sweaty all day long.
During the cold winter
months though Venus Flytraps like to rest in a cool 50 degrees
Fahrenheit environment , resting time may be about 3 months give or take
a week, in which time the trap part of the plant and most of the stem
will wither back.

The soil it needs to
grown in has to be a mixture of 70% peat or Sphagnum moss and 30%
perlite or coarse pumis. Venus Flytraps are sensitive to chemical
imbalances in the earth and tap water should not be used to water them,
instead used distilled water or collected rainwater.
If you have no choice
but to use tap water due to your circumstances then bring the water to
the boil, then pour into an open container and allow to stand for 48
hours undisturbed.

Venus Flytraps do not
need to be fertilized, they get all the nutrients they need from the
bugs they eat. So remember to feed an insect to your plant every
12 days or so, you can buy crickets from your local pet store.
Do not
feed your Venus Flytrap with bits of steak, French fries, pepperonis or
other foodstuff's we humans like to eat, Your Venus Flytrap will
die if you do.
Do not touch the hairs
in the trap just to show your friends how it closes, as this will waste
the plants balanced energy resources for no purpose at all and could
have long term adverse effects on the plant.
Thank you for viewing
this page I hope you found my article of interest.
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