The Content Of The Article:
- Filling the raised bed - optimal time
- Construction of a raised bed
- Various raised beds for different purposes
- Filling a classic vegetable raised bed
- Renewal of the raised bed
Practical, modern and back-friendly - raised beds are trendy. If you are in possession of such a facility, you can be happy in the spring as one of the first over crisp salad. And in the course of a long gardening life, the waist-high bed becomes increasingly indispensable, if the constant stooping causes problems and hurts the back after a long day at work. In order to succeed in gardening with the raised bed, however, it is important to fill the construction according to certain criteria.
Filling the raised bed - optimal timeFor the construction and filling of the raised bed, it is important to set the optimum time; For example, both spring and autumn are particularly suitable for applying the bedding and then filling it. During this time, the garden typically produces deciduous or pruned wood, which can be optimally used for filling. If you use natural materials from your own garden, you ensure that no impurities or harmful substances enter the system.
Construction of a raised bedA raised bed consists of three main layers:
Tip: In order to protect the raised bed from voles, it has proven useful to lay out the floor with a mouse grille.
Various raised beds for different purposesToday, the raised bed is used for many different needs. Hobby gardeners particularly often use the plant for the following purposes:
- as a vegetable patch
- for salad
- as a herb garden
- for flowers
Depending on what applications are possible for the raised bed, the composition of the content may vary; a classic flowerbed comes with a simple layering of air-permeable layer close to the ground, compost as a middle layer and potting soil as the final layer; Plants used for vegetables typically require additional layers. Who wants to use his raised bed as a small herb garden, has to additionally consider the different needs of each herb; while Mediterranean plants such as rosemary and thyme prefer dry and sandy soil, for example, domestic herbs (chives or parsley) require fresh soil. If in doubt, the top layers of earth must be divided into different areas.
Filling a classic vegetable raised bedEach bed is individual and has certain requirements and different structural conditions. Here we show you the filling of a sample bed.
First layer: drainage layerThe first layer used to fill the raised bed is the drainage layer; this has the following properties:
- is up to 30cm thick
- should be at least 10cm
- ensures that no water accumulates in the raised bed
- consists of stones, clay or branches
As an alternative filling for the first layer stones and potsherds can be used. As with layering with plant material, the same applies here: from bottom to top, the individual components are getting finer and finer. So you can find on the bottom thick pieces of clay or larger stones, which are then covered with clay granules or gravel.
Second layer: soil mixtureThe first layer of substrate is distributed over the drainage layer. This layer has the following properties:
- Thickness about 15cm
- serves to support the decomposition process of the wood core
- Garden soil or finished substrate can be used
Tip: If Mediterranean plants are to be cultivated, the substrate as a whole must not be too nutritious. For ornamental plants, which generally stay longer in the bed, you can always incorporate lava or expanded clay.In addition, a pH test with which the soil can be checked for acidic or alkaline properties is suitable; this is crucial for the choice of vegetables.
As an alternative to the substrate mixture from the own garden quality earth from the specialized market offers itself. Again, different varieties for the individual plant species are available.
Third layer: wood coreWaste from the garden can be used optimally for the wood core. For example:
- Remains of the shrub
- thin branches and branches
- Plant remains (fruits, vegetables)
- Remains of shrubbery pruning
The wood core may be generous in its thickness; a total of 40cm should be budgeted for this location. If the layer is thick enough, it ensures that the rotting process provides sufficient nutrients and heat that are important to the plants.
Foliage can be used to cover the wood core; the leaves should be three inches high.
Fourth layer: center coreThe middle core forms the fourth layer of a raised bed. When creating the following applies:
- Thickness about 15cm
- Material: manure such as horse manure or
- coarsely rotted compost
The layer of the wood core may contain in addition to the compost beneficial organisms that are targeted. They ensure that the compost is crushed and act on a faster rotting process. For the plants in this way important nutrients are released. If plants are grown in the raised bed, which have an increased need for nutrients, is also the use of a long-term fertilizer, with which the bed is enriched. Horn chips are used for this purpose.
Fifth layer: finely sieved compostThe last layer of the raised bed is finely sieved compost, which ensures the nutrient supply of the plants; In this way they can grow optimally. After harvesting, this layer can be refreshed if necessary before inserting new plantlets. If neither compost nor garden soil is available from the own green area, suitable substrates can be purchased in the specialist market, for example:
- Garden soil (for salad)
- potting soil
- Mother earth (ideal for crops)
Renewal of the raised bedThe contents of the raised bed do not remain stable throughout the year; Over the months, the entire contents of the system collapses, so that the filling height is reduced by up to 20cm. Then fresh earth must be refilled. Spring is best suited for this measure, as the entire plant will undergo a thorough inspection during this time. However, the earth can not be refilled as often as you like.
Usually after five, but at the latest after seven years, the raised bed is in need of renewal. Then the following measures apply:
- Repair the construction, repair damaged areas
- Replace contents completely
- Create layering from scratch