What Garden Plants Should Not Be Planted Next To Each Other?

Before planting any fruit crop on the plot, it is necessary to assess the potential compatibility of a tree or shrub with other "inhabitants" of the territory. Plants can be outwardly absolutely harmless, but in the presence of common diseases and pests, as well as due to the natural instability, they simply can not coexist comfortably on the same site. Influenced by the individual characteristics of a particular culture - the allocation of poisonous substances by their roots in the soil, poisonous leaves that fall in the fall (the poison from which penetrates into the soil), the ability of neighboring plants to literally intertwine the roots of each other and others. What plants should not be planted side by side in any case, we will tell you in this article.

What garden plants should not be planted next to each other?
What garden plants should not be planted side by side? © Skelbiu

Contents:

  • Good neighbourhood is the guarantee of the comfortable co-existence of plants
  • Good neighbourhood as the prophylaxis of some diseases
  • What must not and what can I plant near?

Accessful neighbourhood - a guarantee of comfortable coexistence of plants

It is, probably, clear to everybody that plants which suffer from the same diseases and pests cannot be planted close to each other. Of course, if you step three or four meters away from the tree, it will not save you 100% from outbreaks of infection, but to reduce its risk will help significantly. It is true that on small plots it is almost impossible to maintain a distance of three or four meters. Therefore, planting plants, you need to avoid neighbors that are "friends" with the same problems.

But when choosing neighbors on the plot, which seemingly have no common enemies (diseases and pests), you may be waiting for other negative consequences from their coexistence. At a minimum, the oppression of plants by each other. And it occurs not only because of the wrong agrotechnics of care for crops. For example, when completely ignored crop rotation, both in the vegetable garden and in the garden. It means planting the same plants in the place of the harvested, uprooted vegetable crops or fruit trees in the impoverished and contaminated soil the next year.

One plant can suppress the other, releasing harmful chemical compounds into the soil. That is, an allelopathy of plants (literally from the ancient Greek "mutual suffering") may take place.

As a result of allelopathy plants can, despite good care, wither and stunt in development, constantly exposed to one or another disease, although all, as a rule, effective methods of prevention were used in time.

Truth, experts note a positive allelopathy: harmful substances emitted by the roots of some plants and allegedly "intended" for rival plants can be neutral or even useful for others.

Right proximity as prevention of some diseases

As we know, there are diseases and pests that affect not only one particular plant, but attack the whole family or are considered, almost omnivorous, destroying most plants growing in the area. As an example, we can name the causative agents of tuberculosis and cytosporine necrosis of deciduous plants; they harm practically all deciduous plants, and there is nothing you can do about it.

But there are also more "selective" diseases. For example, rust, which is caused by a fungus. The development cycle of this fungus is very complicated. It needs to go through as many as three stages, and at each of them, being on the plant, it is able to grow and spread its spores in the wind.

The very first stage takes place in spring, when the aeciospores develop, then the urediniospores appear in summer and, finally, the most dangerous - basidiospores and teliospores are formed in the autumn period. These different spores in different fungi mature on completely different plants, changing sometimes two or even three hosts.

The most interesting thing is that even if one of the plants, on which the first, second or third stages of rust can develop, does not exist on the plot, the disease itself will not occur. For example, it has been proven that if no barberry grows next to the grain crops, rust cannot affect the crops. Barberry is an intermediate host for the fungus that causes rust in cereals, and if it is eliminated, it is almost guaranteed to protect crops from rust.

What garden plants should not be planted next to each other?
Before planting a tree on a property, check its compatibility with the trees next door. © UCLA Volunteer Center

What can't and what can't I plant near it?

Apple trees

Bad neighbors for apple trees

In the early 20th century, apple orchards started giving massively substandard crops -  apples were all wormy. And every year their quality got worse and worse. It turned out that apples are affected by rowan moths, more precisely - its caterpillars. And the rowan plants, which at that time began to be planted around the apple plantations, were to blame for this. Orchards, next to which rowan trees were not planted or did not want to, this pest ignored. Since then, it has been known that rowan should not be planted near apple trees.

Calina consumes a large amount of moisture from the soil, drawing it on itself, and the apple tree suffers from this. On top of all this, a huge number of aphids often settle on the guelder, which, accordingly, spills over to the apple tree.

With regard to coniferous crops, such as, for example, fir, it can over time strongly acidify the soil, in the process of its life, it releases into the ground a lot of resins, polluting the soil. Usually you should wait about three years before replacing any coniferous plant with an apple tree.

Lilacs literally attract a variety of pests and diseases, which later migrate to the apple tree.

Joining with peach and cherry is also fraught with trouble for apple-tree, these two species of plants are very active growing, consume a lot of nutrients from soil and often give a large mass of root shoots, which is very strongly depressing to apple-tree.

The apple tree and the cherry tree also will not be friends with each other, it has been proved that the roots of the cherry tree literally displace the roots of the apple tree from the surface layer of soil to the lower layers, where there is a minimum of fertility and moisture, and this makes the apple tree stunted.

Bad neighbor is also hawthorn - it attracts literally all the pests that occur on the apple.

If you plant junipers next to the apple, just in the garden and there will be the same rust, which is extremely difficult to get rid of.

It is undesirable to keep near apple orchards thickets of weeds, among which can be the bitter wormwood, on which aphids breed very well and with pleasure move to apple-tree when it grows young leaves and shoots.

It is also not desirable to plant potatoes in the rows between young apple-trees as some do. The fact is that potatoes consume a huge amount of nutrients from the soil, strongly depleting it, and apple trees will actually suffer from starvation, especially this applies to those areas where the soil is fertilized rarely, rare watering is made and apple trees are planted on dwarf rootstocks, which have weak root system.

Good neighbors for apple trees

The southern side of apple tree plantings can be planted with tomatoes. Tomatoes are disgusting to the moths of the fruit beetle, and such a neighborhood is considered a good prevention against this pest.

"Friends" with the apple tree and raspberries. The fact is that the root system of raspberries is able to fix nitrogen, which can be used by apple trees, at the same time, the root system of raspberries increases air and water permeability of the soil. Gardeners often observe the positive effect of the contact of shoots of these plants - the special properties of raspberries help to protect the apple tree from such a dangerous disease as scab, and the apple tree, in turn, protects the raspberry from no less dangerous for this berry crop disease - grey rot.

Also a friend of apple is the maple ash, it deftly saves this fruit crop from the fruit moth - it simply does not appear on the apple. It turns out that phytoncides, which this variety of maple exudes, affect the fruit moth. It is not necessary to let the maple grow to a huge height, there are many pruning options to reduce maple growth and it can be maintained in a fairly modest size, such as a meter or a meter and a half in height. If you want the maximum amount of phytoncides in the air around the apple tree, then once a day you can go out into the garden and gently crush the leaves of the maple.

Cultures such as apple and honeysuckle are considered conventionally compatible, but it is better to plant honeysuckle around the apple garden, but not alternate these cultures in rows. Apple trees can be threatened by the cereal borer, which causes irreparable damage to honeysuckle as well. Honeysuckle moths can also infest apple trees.

What garden plants should not be planted next to each other?
The pear tree in the garden is "friendly" with the same plants as the apple tree. © Gardenista

Pear

Bad Neighbors for Pear

Pear is solidarity with apple in its dislike for the same plants, and it simply will not live with such cultures as beech, barberry and all stone crops because beech has a powerful root system and a huge aboveground mass, and barberry has many diseases and pests similar to pear. You should not plant junipers near the pear garden (all because of the same notorious rust).

Don't forget about allelopathy - root excretions of pear are also toxic, especially cherries suffer from them.

Good neighbors for pear

Anywhere the pear will be friends with, it is with oak, rowan common, poplar and, especially, black poplar. Although oak has a powerful root system, its roots go much deeper than those of pear, so the tree is not its competitor. The rowan consumes a small amount of nutrients and moisture and can even fertilize the soil with an abundance of leaves and berries, if they are not harvested. Poplar, when planted on the north side, can protect pear from winter cold.

Cherry

Bad neighbors for cherries

Bad neighbors for cherries would be apricots, black currants, raspberries and the vast majority of early apple varieties.

Aprick root system emissions are thought to be toxic to cherries - slowly killing the plant.

Cherry and blackcurrant should not be planted next to each other, first, for the reason that it will be impossible to conduct treatments of one or the other crop, as the timing of their vegetation will not coincide, and the roots of blackcurrant can play the role of weed roots, actively absorbing moisture and nutrients from the soil.

Do not plant tomatoes, sweet peppers and strawberries in between the rows of cherries: the latter, for example, often attracts nematodes, from which all cultures can suffer without exception.

The solanaceae family should be protected from cherries because of the active spread of verticillium dieback (wilt) by solanaceae. This is a dangerous disease (we wrote about it in due time), it leads to dying off of cherry wood very quickly. The following picture is often observed - immediately after flowering the cherry tree becomes wilted.

Good neighbors for cherry

But good friends for cherry will be plum and cherry - their root system is located almost at the same depth, the height of plants is almost identical and harvest ripening dates are close, so you can water, fertilize, conduct treatments without fear of harming the neighbouring plants. In addition, some varieties of cherries are good pollinators for cherries.

Plum

Bad neighbors for plum

If you decide to plant plum on the plot, then plant it as far as possible from pear, raspberry, black currant and apple trees. All diseases and pests they have in common, in addition, they consume the same substances from the soil and will be serious competitors.

Good neighbors for plum

Booseberry black is not only a medicinal crop for humans, but can save plum from an infestation of aphids. Canadian maple, but not American maple, which is considered to be the most dangerous weed tree in Russia, will have a good effect on plum growth and development and its yield. As you know, the Canadian maple reaches a large size, so if you decide to plant it next to the plum, you need to take care of controlling its growth in height by annual pruning.

Abricots

"Enemies" of apricots, due to common diseases, pests and elements consumed from the soil, are apple, pear, plum, peach, cherry, rowan, cherry, and naturally, all kinds of nuts with their poisonous foliage.

Do not plant next to apricot raspberry and currant, they also have many common pests. It is better to give apricots a separate place, far away from other cultures. © Dieter Hawlan

Peach

Peach will not be friends with apples and pears, because there is a possibility of infection with similar diseases or the same pests, and the volumes of substances they consume are the same. It is scientifically proved that peach root system entering the root zone of apple and pear trees can cause the die-off and complete destruction of the latter with time. Planting them on the same plot is certainly possible, but four or, to be more accurate, five meters back.

It has been observed that if a cherry or cherry tree is planted in close proximity, the peach will try by all means to grow in the opposite direction from them, and the side located towards these plants will gradually lose its leaves and the shoots on it will begin to wither. This is due to the increased sensitivity of the peach to light, it needs a lot of light and any shade it cannot tolerate. If you do not take any measures, after a couple of years, the peach can die completely.

Barberry

If you do not want any fruit bush to be constantly sick, do not plant near him barberry, he will not affect only hawthorn, American maple, yarrow, but the rest of the culture can depress, and this applies even to fruit plants.

From fruit crops, barberry can get along only with plum, which has a powerful root system and has no common enemies, and from the early berry - with honeysuckle. But all these crops have one common and serious enemy - the juniper, which spreads rust everywhere.

Barberry is very unfriendly to plants, because it releases into the soil a large amount of poisonous substance - berberine, it negatively affects other plants, inhibiting their growth and development.

Red currant

Red currant can get along only with rose hips as it has no common diseases and pests, and between them there are no signs of allelopathy, but with the abundance of shoots of rose hips have to fight annually, but with the raspberry currant will not grow well, because they have a common dangerous pest - gooseberry blossom.

If you want to protect currants from the bud mite, then plant in between the rows of this crop onions.

Black currant

Black currant - the main thing to plant it away from bird cherry, because on bird cherry winters the glassberry, the worst enemy of currants. Do not plant near currants and gooseberries: they have a huge number of common diseases and pests.

Golden currant

Golden currant has perhaps the most pronounced allelopathy. Moreover, it itself grows perfectly well next to any plant, but strongly oppresses the neighboring.

Buckthorn

Buckthorn is a real aggressor plant, clogging its shoots of other plants. In principle, sea buckthorn can be combined only with garden strawberry, but do not forget about the presence of common diseases and pests in these crops.

Conclusion. Of course, on small plots, where you want to plant as many fruit trees and bushes as possible, it is difficult to maintain the necessary distance between the plants. We hope that our article will help you organize the right neighborhood for the "residents" of your garden. Your observations on the favorable or not so favorable neighborhood of plants will be glad to read in the comments.

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