What are the benefits and harms of weeds + how to make fertilizer from them

What are the benefits and harms of weeds + how to make fertilizer from them

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Who divided all plants into useful and harmful (i.e. weeds)? Most likely, they were summer residents who were not satisfied that some green comrades did not obey the master's will and grew up where they were not invited. But in nature, absolutely useless plants do not exist, and the most vicious weed, which we finish off from year to year in our own beds, can be used profitably. Sterile gardens are not in vogue these days, because many owners have learned the benefits of weeds for garden crops, and are trying to use the riotous vegetation for their own good. We will figure out which weeds are worth continuing to fight, and whom it is advisable to leave in moderation in the beds.

Harm or benefit: what is more from weeds?

When summer residents start a war with weeds, their only desire is to completely surrender the green enemy and eradicate him from their own garden. But the problem is that there are millions of weed seeds in the soil, and they remain viable for many decades. So the weeded ones are replaced by new grasses, awakened by the stirring of the soil. And they are awakened by the person himself, carrying out loosening and weeding.

The harmful effect of weeds on garden crops

If you ask a summer resident what harm the weeds do, then the first thing he will say is that they suppress the growth of cultivated plants. This fact really takes place, but only at the stage of vegetable germination, when the sprouts are frail and have not gained strength. In the struggle for sun and light, weeds can easily drive the weaker ones out of the garden. But when the same tomatoes or peppers gained thickness and grew so that they had to be tied up, no weeds would drown them out.

In potato beds, wheatgrass is the worst enemy. He not only interferes with the development of potatoes, but also gnaws the tubers with his roots, taking food from them for himself. Wheatgrass is able to lift the concrete blind area, breaking through cracks, spoil the tile joints on the paths, etc. If you choose among the most harmful weeds, then the palm should be given to him. It is impossible to come to an agreement with wheatgrass and a merciless struggle must be waged. In large fields, this grass is destroyed by herbicides and constant tillage (disking, harrowing, etc.), and in flower beds the only option to etch roots out of the ground is to mulch. But not with sawdust or bark, but first cover the ground with black spunbond, which will block sunlight for the weed, and pour some kind of decorative material on top. And such a coating will not be removed for a couple of years.

If a bindweed, or in a folk way a birch, is out of control, it is destroyed with kerosene, which does not harm garden crops

All other weeds - dandelions, nettles, chamomile, runny, tansy, wood lice, etc. - can and should be used to improve the growth of garden crops.

How are weeds useful for gardeners?

Let's make a reservation right away that everything is good in moderation. Therefore, we can only talk about the benefits of weeds when their numbers are kept within certain limits, and uncontrolled seeding and blocking of the beds are not allowed.

In such thickets of weeds, the garden, of course, will not survive, but how much green fertilizer can be obtained if all this is mowed and chopped

Weeds signal soil deficiencies. Each weed has its own needs for soil acidity and its mineral composition. Therefore, by the plants that breed annually on your site and are not going to leave it, you can understand what your soil is missing:

  • So, horsetail and plantain signal that your soil is acidified. And if you take measures to neutralize it, then these herbs will disappear on their own, without any maintenance.
  • Wood lice, coltsfoot, wheatgrass, sow thistle are indicators of healthy acidity. They live in slightly acidic and neutral soils.
  • If a lot of quinoa began to appear among the potato furrows, this is a hint that it is time to change the place for the potatoes. This soil is too tired of this culture.
  • The appearance of a large number of weeds, blooming in late summer and autumn, indicates a weak soil fertility and a lack of humus.

Weeds help plants grow... Botanists have long noticed that some nearby plants can have a positive effect on each other. In the process of growth, they secrete phytoncides, remove enzymes and ions through the pores, which are washed off by rains into the soil and get to the roots of other crops, enhancing their immunity and resistance to diseases.

Cutting dandelions to create mulch is carried out while the flower buds have not yet opened, otherwise they will ripen in the garden and scatter over all the beds

So, dandelions in cucumber beds contribute to the accelerated ripening of fruits, because during flowering they release a special gas - ethylene. If the aerial part of the dandelion is mowed and ground into mulch, then the soil will receive almost the entire set of mineral elements.

Umbrella crops that are sown with self-sowing (dill, caraway seeds), as well as wormwood, repel insect pests. It is useful to leave them in the near-trunk circles of trees, among the cabbage, so that the white butterflies do not spoil the vegetable. And the nettle will not let slugs and snails into the garden.

The pungent smell of dill scares away pests from the cucumber patch, and the aromatic substances released into the air improve photosynthesis and the health of the whips

Nettles growing in cabbage beds or between strawberry bushes will become a serious blockage for snails and slugs, especially in wet summers

Weeds provide protection from the scorching sun. Many crops experience extreme stress during hot summer, especially if summer residents do not have time to water them on time. Melons suffer the most: zucchini, pumpkins and the same cucumbers, because wide leaves evaporate moisture at an accelerated rate. If such a season is coming, it is worth leaving these beds unfilled. Weeds are taller in growth than creeping crops, so they will create the necessary shade. But the existing version that if you do not weed the tomatoes, then the weeds will protect the fruits from fog, is wrong. Tomatoes are affected by late blight not because of fog, but because of high humidity, lack of ventilation between the bushes. And if you have not weeded the weeds yet, then the air simply will not be able to circulate through the garden. Accordingly, tomatoes will start to hurt more often.

Tomatoes require good ventilation of the bushes, so they are weeded out carefully and not mulched with green mass, so that there is no excess fumes

Using weeds to enrich the soil

All weeds, harvested before the seeds are ripe, are an excellent ecological fertilizer. They are laid in compost, beds and paths are mulched. Many plants can be infused and used as foliar feeding. Such spraying at the same time kills aphids and enriches crops with useful elements.

In order for the greens to decompose more actively, it is recommended to pre-grind it. You can make a grass chopper with your own hands, read about it:

An interesting way of using weeds was invented by Kaliningrad summer residents. They mow all harmful vegetation, chop it, mix it with the lawn grass and lay it out in rows on the plowed bed, where potatoes are planned to be planted in spring. Layer - at least 30 cm. With the arrival of spring, no more earthworks are carried out. And seed potatoes are simply placed under the mulch and sprouts are expected to appear. The tubers in the rotting grass are warm, they are not attacked by the Colorado potato beetle, which is frightened off by the smell of decaying plant debris. It is not necessary to weed such beds, you can only hilling from the sides, raise the rows. Productivity is slightly lower than usual when potatoes grow in the ground, but leaving is a minimum.

If you approach weeds wisely, then the harm caused by them can be turned to your advantage and you can achieve greater yields without the use of chemical fertilizers.

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The benefits of weed plants in the garden. Weed fertilizer recipes. Processing the garden with herbal infusions

Everyone knows what harm the weeds do to the garden. Did you know that many weeds are beneficial? In the article we will talk about the beneficial properties of weeds.
Having bought a plot, landowners immediately engage in a merciless battle with weeds. Few of them think that wild plants are part of an established ecosystem, where everything is thought out and each representative of the flora has its own important role. The question arises, is it necessary to fight weeds in the garden, who are they - malicious pests or the best allies of the vegetable grower?

Weeds are useful, fighting is not recommended!

If we consider that weeds do have useful properties, then it is worth considering whether it makes sense to fight them. After all, earlier all forces were thrown into this, especially in the fields of collective and state farms. Is it better to control these “false enemies” and try to “control” the weeds so they can also be beneficial?

So, advice from attentive gardeners:

  • Stinging nettles can increase your plant's resistance to pests. It is believed that stinging nettles are not liked by slugs. In addition, this stinging plant enhances the growth of tomatoes. As for the person, the benefits are also enormous. Nettle can be used to make salads and even make green borscht!
  • A weed like sow thistle also helps plants (such as pumpkin, cucumber, watermelon and melon, corn and onion). It simply creates the necessary shade, and with the help of its root system, it draws to the surface of the earth all the nutrients that have accumulated in the deep layers of the soil.
  • And here is another weed known to all - bindweed. Another, better known name for this plant is «birch ". The villagers know: it is almost impossible to remove it, because even if you weed it, this weed grows even more. With its long roots and top, it also fulfills its important role in shielding the earth from the sun and wind.

According to experts, these plants appear only where man himself has disturbed the natural balance by his economic activities.

This means that weeds appear to protect the soil and enrich it with minerals. Indeed, in the wild, often, weeds do not multiply in such large quantities. If we have not convinced you, then at least you will think about what is the use of weeds in your garden. And try not to mindlessly destroy with chemical means what can come to the aid of you and your crop.

Weed benefits

In nature, a fertile soil layer is formed precisely due to the fact that rotting dead plants enrich the earth with organic matter and all the substances that they previously received from the earth. In addition, their roots loosen the soil, supplying it with oxygen. In drought, grasses shade the soil, preventing it from drying out. Some herbs attract various pests, while others are able to scare them away. For example, it is advisable to plant yarrow around the perimeter of the site to protect against many pests.

Nettles can protect cabbage and strawberries from slugs, and dandelions growing among cucumbers help in the rapid development of fruits. That is, apart from harm, from weeds, there is also considerable benefit.

All weeds are divided into the following groups:

  • medicinal
  • edible plants
  • siderates
  • poisonous plants.

Each of the weeds can be in one of the groups, or simultaneously in several. And absolutely each of them can be used in some way. Consider further what other benefits there may be from weeds.

The benefits of earthworms in the garden

Showing activity as close as possible to the surface in moist soil, during a drought they go to a depth of up to half a meter. On damp meadows, they can live up to 600 pieces per square meter of soil. In ordinary gardens - up to a hundred individuals. Every day, each worm eats and converts as much organic waste as it weighs itself.


The benefits of the life of these creatures include:

  • Aeration of the soil, which the worms literally plow.
  • Restoration of the fertility of depleted land.
  • Oxygen delivery to plant roots.
  • Growth of populations of beneficial bacteria.
  • Enrichment of soils with magnesium, phosphorus and calcium readily available to plants.
  • Regulation of acidity.
  • The humus substances released by worms prevent soil erosion from winds and precipitation.

What harm they do

Some gardeners mistakenly believe that the worms in the soil feed on the roots of young seedlings. But in reality, these creatures have a completely different diet, they feed on not completely decomposed long-dead plant matter. But harm can really bring, although of a completely different kind.

The problem is that poultry and animals readily eat rain creepers. American farmers have even bred them specifically as a protein supplement for broilers and pigs. But these annelids often act as intermediate hosts for dangerous parasites.

For pigs, these are deadly metastrongylides. When infected with these helminths from swallowed worms, the pig's body is poisoned by the poisons secreted by the worms. The respiratory system is disturbed to the point of paralysis, and the animal may even die. For poultry, the same danger is posed by syngamids, the larvae of which live in earthworms.

At one time, Louis Pasteur warned that they are capable of entering cattle burial grounds and carrying anthrax spores to the surface from there. However, it has already been proven that worms are not interested in organic matter of animal origin, they are vegetarians of the underworld.


Nowadays, in huge areas of fields, these worms have become very rare due to the craze for herbicides-pesticides, from which these creatures die. But at the same time, the popularity of vermicultivation is growing, that is, they are specially bred artificially.


For some, this has become a good business, as fishermen always need worms for bait. And the demand for the vermicompost produced by them is constantly growing along with the spread of organic farming. Many people buy live creepers to release on their plots.

Although it is quite possible to breed them on your own, there is nothing difficult about that. It is enough to dig a hole and fill it with fallen leaves, vegetable peels, adding a little manure. And to settle there worms, which will appreciate the richness of the forage base and breed themselves.

You can stimulate their accelerated reproduction by watering organic residues in the compost pit with three-day infusions of dandelions, nettles, vegetable waste and mowed lawn grass. And when the worms multiply, they will do much more good than harm.



  1. Harimann

    Think only!

  2. Garbhan

    Bravo, what a phrase ... a wonderful thought

  3. Faris

    everything can be

  4. Randale

    A very curious topic

  5. Vihn

    Yes, really.

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