What is a vermicomposter or vermicomposter?


Do you want to improve the fertility of your soil in a natural and organic way? Then a vermicomposter or worm vermicomposter may be just what you are looking for. It is a container that uses earthworms to decompose organic matter and convert it into nutrient-rich compounds.

This can be used to improve soil health and enhance the growth of your plants. You could say that it is the home of worms, They have to feel comfortable and be protected to develop in the best possible way and fulfill their role.

Therefore, The container must have specific characteristics for proper decomposition to occur. and can have a better result in the plants.
In this article, we will explain what a vermicomposter is, the advantages it offers your plants, where and how to apply it, and we will talk about its components and use.

What is a vermicomposter?


It is an ecological device that uses earthworms to decompose organic matter, such as food scraps, garden waste, and paper and cardboard, into nutrient-rich compost.

The worms They eat the organic waste and excrete it into the nutrient-rich container, which can then be used as natural fertilizer for your plants.

Those found in your garden are not suitable for this device because they do not process large amounts of food waste and do not reproduce well in small spaces. There are other species of worms to place in the vermicomposter such as Eisenia fetida and E. andrei.

The main component of vermicompost is worm excrement. which is usually dark in color and fine in texture.

It also contains other organic materials, such as partially decomposed food scraps, garden waste, and paper and cardboard. The worms break down these materials and They transform them into nutrient-rich compost.

Main characteristics of a vermicomposter

It must meet certain requirements for the worms to grow and produce good compost.


Regarding the material of the container, the most common thing is that it is plastic and they come in various sizes, They can also be made of wood, but you should never use cedar because it contains antimicrobial properties.

You can buy them online, the polyethylene foam ones that are the most suitable because they have better insulation.
The small ones are ideal for those just starting out, for large populations of worms you can do it later when you are familiar with the technique.


The vermicomposter must have breathing holes so that air can enter since the process of seeing my composting needs air. If it is reduced or scarce, the worms may have problems and at some point bad odors will be generated.

Moisture and drainage

From time to time we will have to water to maintain the optimal humidity level, which is 80%.
The organic remains that we incorporate into the container such as fruit and vegetable remains have a large percentage of water when mixed with the dry remains, they will balance the humidity.

At some point there may be a surplus of water, it has to drain somewhere. For this reason, it must have drainage holes to avoid waterlogging.

Container format

It is a no minor detail as it is an aerobic process, the container It has to be wider than tall, This way the remains will have a larger surface area in contact with the air and will promote proper decomposition.



Worms must be fed with fruit and vegetable scraps and other waste that we use in the kitchen. Remember not to overfeed them, to avoid this apply small amounts every one or two weeks in a circle around the container.
That way you can see how they direct the food inside and when you need to put food back in.

Since they do not have teeth and absorb food The best foods have to be soft cut into small pieces with a knife or food processor.


The best foods for them are:

  • fruit scraps
  • Fruit peels
  • vegetable residues
  • Coffee grains
  • Tea bags
  • Colorless and shredded paper
  • Small pieces of bread and cereals

Avoid feeding them with:

  • Carne
  • Dairy
  • Citrus fruits
  • Spicy food
  • Savory products
  • grass clippings

These products can cause bad odors and bring bacteria. The worms will excrete products that are rich in nutrients and microorganisms that are very beneficial for plant production.

Benefits of vermicomposting for your plants

It offers several advantages for plants. It is a rich source of essential nutrients, microorganisms and humic acids, all of them essential for the health of plants.

The content is rich in nutrients and makes it an ideal option to enhance the growth of your plants, increase its resistance to pests and diseases, improve soil structure and drainage and increases your overall fertility.

In addition, the seeds germinate faster, the growth rate of the plant increases, it grows larger, the eradication of pathogens and pests occurs and the efficiency in terms of pollination is greater.

What is the best time of year to start vermicomposting?

It can be started at any time of the year as long as you keep in mind to control the temperature and humidity. inside the container.
Above all, keep the containers cool during the hot summer months, and prepare so the worms can survive the winter.

When to apply the fertilizer?


It is best applied to the soil at the time of planting, but it can also spread over the soil surface at any time of the year. It should be used sparingly and spread throughout the planting area, not in a concentrated area. It is important to work the compost into the soil with a rake or hoe, and water the newly amended soil thoroughly.

Finally, if you want to improve the fertility of your soil in a natural and organic way, A vermicomposter may be just what you are looking for.

It is an ecological source of nutrients and microorganisms, and offers many advantages for plants, such as greater resistance to pests and diseases, better soil structure and drainage and greater fertility of the land.

You can apply it at any time of the year, and it is made up of worm droppings and partially decomposed organic materials.

so in addition It is of great benefit to the environment by reducing the need for chemical fertilizers and reducing waste. that go to landfills. Get started today and see the amazing effects it can have on your garden.

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