Like other plants, Venus Flytraps gather nutrients from gases in the air and nutrients in the soil. However, they live in poor soil and are healthier if they get nutrients from insects. Carnivorous plants live all over the world but Venus' Flytraps live only in select boggy areas in North and South Carolina. Because of people's fascination with these plants, they collected many of them and they became endangered. Venus' Flytraps today are grown in greenhouses.
The leaves of Venus' Flytrap open wide and on them are short, stiff hairs called trigger or sensitive hairs. When anything touches these hairs enough to bend them, the two lobes of the leaves snap shut trapping whatever is inside. The trap will shut in less than a second. The trap doesn't close all of the way at first. It is thought that it stays open for a few seconds in order to allow very small insects to escape because they wouldn't provide enough food. If the object isn't food, e.g., a stone, or a nut, the trap will reopen in about twelve hours and 'spit' it out.
Picture of Venus' Flytrap in the wild.
When the trap closes over food, the cilia. finger-like projections, keep larger insects inside. Fold your hands together lacing your fingers to see what the trap looks like. In a few minutes the trap will shut tightly and form an air-tight seal in order to keep the digestive fluids inside and bacteria out.
Dionaea muscipula (Venus Flytrap) with the carcass of a partially digested insect. The exoskeleton of the insect can not be digested by the flytrap, so it remains when the leaf reopens.
If an insect is too large it will stick out of the trap. This allows bacteria and molds on the insect to thrive. Eventually the trap turns black, rots and falls off.
The trap constricts tightly around the insect and secretes digestive juices, much like those in your stomach. It dissolves the soft, inner parts of the insect, but not the tough, outer part called the exoskeleton. At the end of the digestive process, which takes from five to twelve days, the trap reabsorbs the digestive fluid and then reopens. The leftover parts of the insect, the exoskeleton, blow away in the wind or are washed away by rain. The time it takes for the trap to reopen depends on the size of the insect, temperature, the age of the trap, and the number of times it has gone through this process.
If you feed a Venus Flytrap something that doesn't move, e.g., a dead insect, it will not close tightly over it. You need to squeeze the trap and move the food around so it imitates the action of a live insect.
The lobe manufactures digestive juices and an antiseptic juice. This keeps the insect from decaying over the few days it is in the trap and purifies prey that it captures.
carnivorous plants - Drosophyllum-4
People still do not understand fully how the trap closes. The Venus' Flytrap does not have a nervous system or any muscles or tendons. Scientists theorize that it moves from some type of fluid pressure activated by an actual electrical current that runs through each lobe.
How to Grow
The Venus Flytrap is one of the easiest carnivorous plants to grow. If you wish to grow one or more, they have only a few requirements such as, wet roots, high humidity, full sunlight, and poor, acidic soil. It comes shipped to you as a bulb or rhizome. Plant it root side down so that the top of the bulb is even with the soil. A recommended soil mixture is one that contains sphagnum moss and sand. Do not add fertilizer or lime. Your plants will do better if you transplant them into new soil every few years.
In order to provide high humidity for your Venus Flytrap, plant it in a terrarium or in a glass container with a small opening. An old aquarium or fish bowl make good containers for this purpose. You need to watch your terrarium in the summer because the temperature inside the glass may get too hot. Two hours in the sun may be sufficient. If your plants wilt, then they need to come out of the sun sooner. Just the opposite is true for winter. If it gets very cold in your area you may need to move your plants away from the window or cover them at night in order to keep them warm and moist. However, your Venus' Flytrap will experience a dormant period in the winter, from Thanksgiving to Valentine's Day so it needs fewer hours of daylight and cooler temperatures.
Another way is to plant it in a pot and place the pot in a larger container such as a bucket. Partially cover the top of the bucket with a piece of glass or Plexiglas. Don't cover the entire top because air needs to circulate.
If you grow your plant outside, it will get enough insects to eat. If it rains the container may fill up with water but this will not hurt the plants, they can live underwater for months. If you grow your plant inside you will need to feed it insects. A couple of houseflies or small slugs per month is enough during the growing season. Do your plant a favor and do NOT feed it hamburger! Indigestion, rot may occur and usually your plant will die. Find a "just right" sized bug instead!
The leaves of Venus' Flytrap open wide and on them are short, stiff hairs called trigger or sensitive hairs. When anything touches these hairs enough to bend them, the two lobes of the leaves snap shut trapping whatever is inside. The trap will shut in less than a second. The trap doesn't close all of the way at first. It is thought that it stays open for a few seconds in order to allow very small insects to escape because they wouldn't provide enough food. If the object isn't food, e.g., a stone, or a nut, the trap will reopen in about twelve hours and 'spit' it out.
Picture of Venus' Flytrap in the wild.
When the trap closes over food, the cilia. finger-like projections, keep larger insects inside. Fold your hands together lacing your fingers to see what the trap looks like. In a few minutes the trap will shut tightly and form an air-tight seal in order to keep the digestive fluids inside and bacteria out.
Dionaea muscipula (Venus Flytrap) with the carcass of a partially digested insect. The exoskeleton of the insect can not be digested by the flytrap, so it remains when the leaf reopens.
If an insect is too large it will stick out of the trap. This allows bacteria and molds on the insect to thrive. Eventually the trap turns black, rots and falls off.
The trap constricts tightly around the insect and secretes digestive juices, much like those in your stomach. It dissolves the soft, inner parts of the insect, but not the tough, outer part called the exoskeleton. At the end of the digestive process, which takes from five to twelve days, the trap reabsorbs the digestive fluid and then reopens. The leftover parts of the insect, the exoskeleton, blow away in the wind or are washed away by rain. The time it takes for the trap to reopen depends on the size of the insect, temperature, the age of the trap, and the number of times it has gone through this process.
If you feed a Venus Flytrap something that doesn't move, e.g., a dead insect, it will not close tightly over it. You need to squeeze the trap and move the food around so it imitates the action of a live insect.
The lobe manufactures digestive juices and an antiseptic juice. This keeps the insect from decaying over the few days it is in the trap and purifies prey that it captures.
carnivorous plants - Drosophyllum-4
People still do not understand fully how the trap closes. The Venus' Flytrap does not have a nervous system or any muscles or tendons. Scientists theorize that it moves from some type of fluid pressure activated by an actual electrical current that runs through each lobe.
How to Grow
The Venus Flytrap is one of the easiest carnivorous plants to grow. If you wish to grow one or more, they have only a few requirements such as, wet roots, high humidity, full sunlight, and poor, acidic soil. It comes shipped to you as a bulb or rhizome. Plant it root side down so that the top of the bulb is even with the soil. A recommended soil mixture is one that contains sphagnum moss and sand. Do not add fertilizer or lime. Your plants will do better if you transplant them into new soil every few years.
In order to provide high humidity for your Venus Flytrap, plant it in a terrarium or in a glass container with a small opening. An old aquarium or fish bowl make good containers for this purpose. You need to watch your terrarium in the summer because the temperature inside the glass may get too hot. Two hours in the sun may be sufficient. If your plants wilt, then they need to come out of the sun sooner. Just the opposite is true for winter. If it gets very cold in your area you may need to move your plants away from the window or cover them at night in order to keep them warm and moist. However, your Venus' Flytrap will experience a dormant period in the winter, from Thanksgiving to Valentine's Day so it needs fewer hours of daylight and cooler temperatures.
Another way is to plant it in a pot and place the pot in a larger container such as a bucket. Partially cover the top of the bucket with a piece of glass or Plexiglas. Don't cover the entire top because air needs to circulate.
If you grow your plant outside, it will get enough insects to eat. If it rains the container may fill up with water but this will not hurt the plants, they can live underwater for months. If you grow your plant inside you will need to feed it insects. A couple of houseflies or small slugs per month is enough during the growing season. Do your plant a favor and do NOT feed it hamburger! Indigestion, rot may occur and usually your plant will die. Find a "just right" sized bug instead!
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