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Sand bottom or loamy soil - in the garden there is rarely the ideal soil for all those plants that you would like to grow. And so every gardener is encouraged to supplement the soil so that the desired cultivation can take place easily. Especially very sandy soil can pose a difficult task for the gardener. Because he hardly stores water, which can be a big problem especially in the summer months.
Sand soil is very light and fine and therefore has the big disadvantage that it can store neither water nor important nutrients for a long time. The same applies to fertilizers. Regardless of whether they originate from natural or artificial production: A sandy soil can only bind them for a short time, because they are quickly regrown.
Due to the light floor, a lot of water has to be poured in summer. The wind and the high temperatures ensure that. If it were not watered regularly, then it is hardly possible to grow plants until harvest or flowering, as they would dry up in advance.
As an advantage of a light ground can be considered that this can also be easily edited. Thus, a sandy soil can be quickly dug without much physical effort. In addition, a rake enough to loosen up the soil superficially, heavy equipment is therefore not needed.
Tip: A sandy soil can be recognized very well, that even when wet it trickles by itself through the fingers and does not form lumps.
If it is not immediately obvious whether there is a sandy soil or not, a test is always recommended. This can be done in an independent laboratory or at the green space office. However, since such a test costs money, can also be asked once in the garden section, what experiences have the other gardeners made with the present soil. As a rule, it helps to gardeners and gives tips and tricks without further notice. This not only lays the foundation for a good neighborly relationship, but sometimes saves a lot of money.
For a sandy soil to have a firmer structure, it is important that sufficient humus is added. In the best case, this is done with the help of compost or manure. Horse manure is recommended here in the first place. The compost can be made in your own garden. If large quantities are needed, an additional purchase must be made. Cities and towns often offer compost at reasonably low prices.
The undermining of compost or manure should happen once a year. In the best case in spring, so that the soil can rest in the winter before digging and is not further loosened by the frost. Gradually, the soil becomes stronger through the addition of manure or compost and can then better keep the water and nutrients.
Tip: If there is little time available and the soil can not gradually become stronger, then a soil exchange must take place. For this purpose, topsoil should be bought and replaced with the sandy soil. As a rule, it is recommended to remove at least 20 cm from the old floor and replace it with new floor.
To protect the plants from drying up, some mulch could be scattered around them. The mulch not only improves the soil structure, but also ensures that sun and wind can not pull the water out of the ground too quickly. In addition, the use of mulch avoids strong weed formation. Extra nutrients can be added to the soil in the summer months when watering with nettle. This smells very unpleasant, but helps the plants to absorb many nutrients and to use for growth.
Tip: Other vegetable jellies are suitable. If these are produced by ourselves, we recommend a good closing plastic barrel, in which the manure can be applied.
Mulch, green manure and bentonite
Mulch, which covers the soil around the plants, also improves the soil structure while helping to suppress weeds. Mulch also attracts earthworms, which naturally provide a healthy and loose soil. In the summer months, we recommend fertilizing with nettle or other vegetable follicles, which provide vegetables and ornamental plants with the necessary nutrients.
In the case of green manuring, the yellow lupins, which thrive there, are particularly suitable for a sandy soil. They provide a shading of the surface, so that the moisture is better kept. In addition, after they have been dug up, they release many nutrients to the soil and help form a humus layer. This form of fertilization is suitable for the creation of a garden, but can also be used as an intermediate crop or after the harvest of the vegetables.
Bentonite is a clay mineral flour that is incorporated into a sandy soil.It stores water and nutrients that the sand itself can not hold and can be applied year-round. With only a slightly sandy soil rich 100 grams per square meter, pure sandy soils require up to 500 grams.
Also the so-called green manure can be recommended. Here, in addition to the compost is also specifically worked with plants that sustainably improve the soil. Deep-rooted plants such as sunflowers or lupins are best suited. These not only look beautiful when they flower. When their time is up, the plants can simply be left on the ground. When the time comes to dig up, the remains of the plant are digged in, ensuring that the soil gets a better structure.
For every type of soil there are plants that are particularly suitable. No matter if the soil is very heavy or - like the sandy soil - very light. On sandy soil grow asparagus and carrots very well. Both plant species have deep roots that are not dependent on the superficial moisture of the soil.
Even blueberries or sea buckthorn love sandy soil. And if you like something Mediterranean, you will definitely enjoy oregano or thyme. Also chives can grow well on sandy soil. By contrast, the cultivation of parsley is somewhat more difficult. On the other hand, you can get lavender in the garden, which is also very undemanding and also thrives on sandy soil. And with good irrigation, roses and many shrubs grow, which make the garden dive into great colors.
A sandy soil not only has disadvantages, because some plants grow very well on such a soil. These include
- Asparagus, carrots and blueberries
- Seabuckthorn, broom, rock pear and butterfly shrub
- Mullein, catnip, stonecrop and cushion
- Lavender and Mediterranean herbs like oregano or thyme
Frequently asked questions
How do you recognize sandy soil?
Sandy soil is particularly light and runs through your fingers even when it is wet. In addition, it dries out very quickly and also can hardly bind nutrients.
How can you improve sandy soil?
In the best case with compost or manure, which must be dug under. On the surface you can also work with mulch. The material ensures that the sun and the wind can not dry out the soil too much.
Which plants are best suited?
In general, it can be said that deep-rooted plants work well with sandy soil. These include, among others, blueberries, lavender, thyme, carrots or asparagus.