As experience shows, planning rose beds in our own gardens, we rarely take into account the variety of available forms of these beautiful flowers. Usually we are satisfied with the many-flowered, noble and shrub roses.
Roses have accompanied man for hundreds of years. Without a doubt, they are among the oldest cultivated garden plants, and the proverbial rose luxury of the old Roman Empire allows us to assume that already then roses were surrounded by special reverence. Subsequent epochs did not in any way weaken the true ball – here given to these flowers. In many gardens, the roses secured a stable position.
From age to age, then from quarter of a century to quarter of a century, and today, year after year, new varieties with a fairy-tale play of colors, with almost unrivalled form, spreading a beautiful scent. But also the most ordinary representatives of roses, hedge and wild varieties, deserve our attention. They are the inseparable companions of natural shrubs and should not be missing in our gardens.
The first description of the inhibition of plant growth by root secretions of other plants was given by de Candolle already in 1832. However, it was only in the thirties of the twentieth century that the more serious interest in this kind of biochemical, invisible influence of plants (but also fungi and plants) was taken. They were scientifically called allelopathy. Allelopathy in the garden was introduced by Ch. Molisch in 1937 in Jena. At that time he described what the first farmers and gardeners who consciously started to grow plants organically were observing and using in practice. They did not use mass-produced chemistry and avoided monoculture.
In the horticultural tradition of old times, there was a belief that the most appropriate time to cut fruit trees and bushes, including ornamental plants and hedges, is winter, especially its end. What was the justification for such a recommendation? What are the advantages of winter pruning trees and shrubs?
When do Wounds from Pruning Trees and Shrubs “Bleed Less”?
Especially during the dormancy of plants. In winter the juices don’t circulate, so wounds “bleed less”. It was also believed that winter pruning is less harmful to the plants, because it makes it easier for them to heal their wounds quickly in spring, right during the first start of the juices. This quite drastic treatment was carried out in the winter period also because the trees and shrubs suffered less.
Success in crops co-cultivation depends on several important conditions. However, the right choice of plant species is decisive. Several factors should be taken into account that affect the interaction of plants both under and above the ground:
- belonging to a botanical family, so that the accompanying plant, pre-, after or mid-crop does not spoil the crop rotation system
- nutritional requirements (preferably similar or similar in a given field)
- requirements for light, water
- habit, height, width of plants
- root system structure, width and depth of roots
- susceptibility to diseases and pest infestation.