Generalities oxalis acetosella
The sorrel is a genus that combines in itself numerous perennial herbaceous plants originating mainly from Africa and Latin America, but also found in Europe and North America. The shamrocks are generally small roundish cushions of trilobate leaves, similar to the trefoil, gray-green in color, between 10 and 15 cm high; for this reason they are particularly suitable for creating flowerbeds in the garden and thus decorate the available green space. In late spring and in summer it produces numerous flowers with five petals, pink, white, yellow or red. The oxalis sorrel they form fleshy tubers that develop into dense groups, which over time can become very large.
The sorrel prefers bright locations but also needs shade and shelter, especially during the hottest summers; the leaves with the arrival of the cold dry and the tuber goes into vegetative rest; generally it does not fear the cold, but in places with particularly cold winters it is advisable to collect the tubers and store them in a temperate, dry and humid place, to plant them the following spring.
The oxalis grow without problems in any soil, preferring in any case loose, well-drained soils rich in organic matter; It is advisable to use a mixture of soil and peat in equal parts, to which to add a small amount of sand to increase drainage. In this way our oxalis cetosella can develop at its best and we will be able to enjoy its delicate beauty. It is important to water the plant on a regular basis, especially in the summer season (July-August). In the winter months, it will be sufficient to wet the plants once a week.
The reproduction of acetosella occurs spontaneously, with great ease.
If we wish to reproduce our map, the best time is the spring season.
In spring it is therefore possible to divide the root tufts; the portions practiced must be immediately placed at home.
To sow the plant it is necessary to make rather deep furrows in the soil and space the seeds between them (about 25 cm from each other). They should be sown in groups of 2-3 and covered with soft, light soil.
The flowers that will be born will have white colors with lilac or pink veins. The flowering period (of limited duration) is April-May.
Acetosella - Oxalis acetosella: Parasites and diseases
For optimal plant growth, there are no specific rules to follow as the sorrel grows spontaneously and is easy to grow. It is essential to supply it with water in case of occurrence and not to leave the dried heads.
These fairly rustic plants are not easily attacked by pests or diseases; sometimes aphids or mites can cause some damage.
If your plant is affected by these problems, one of the remedies to be implemented is to prune the plant in the affected areas. The safest and most reliable remedy, however, appears to be the use of specific pesticide products capable of eradicating the root problem. These can be purchased at specialized garden centers or at the best nurseries in the area.