How to grow the Neem tree in a biological way
The term Neem, derived from nīm (Hindi: नीम, nīm) and whose scientific name is Azadirachta indica, is a plant with multiple applications: from medicinal ones to use as a natural insecticide. This plant, native to hot and dry climates, can not stand temperatures below 5 ° C, so in Italy it can only live in some microclimates of the south and coastal areas.
Neem seed is not easy to find because it immediately loses germinability but if you can find the ideal period for it goes from mid-April to the second half of May. Fresh seeds (in groups of two or three) must be placed directly in the ground about one centimeter deep.
Germination takes place between two and three weeks. For the choice of the land it should be noted that the Neem, also growing on almost all types of soil, including clayey, salty or alkaline and even on dry, stony and calcareous soils, benefits greatly from good soil fertility and above all good drainage. Regarding the irrigation contributions it is emphasized that it does not need a lot of water but instead takes advantage of very sunny areas.
The growth of this plant is slow in the first year of life and in this period they are more intolerant to the shade and the cold climate. Fructification takes place on average after the fourth year of life and full fruiting is reached towards the tenth year. It is a centenary tree. Every year, quantities of organic matter and mineral salts must be added to be drilled in the ground; for the latter advice the use of ash from plant residues and pruning (especially in companies with tree plantations). The organic substance must be made in the winter while the ash before the irrigation supplies. Avoid the intake of nitrates or other salts of chemical origin.
As for pruning this should be done in spring and then at the end of summer to allow sunlight to illuminate the whole plant. the pruning residues can be scattered wine to your plants and your vegetables where they will exert a phenomenal action mulching, fungicide and insecticide (repellent).
The famous oil that has insecticidal and medicinal properties is extracted from the seeds of Neem.
As for the parasitic attacks, Neem plants are totally immune from this type of danger, for this reason an interesting idea is to be able to insert them in your farms in order to carry out an interesting action to repel harmful insects. In this regard, it is recalled that these are plants that reach impressive dimensions (of the same family as mahogany) up to 30 meters in height, so their positioning must not disturb agricultural crops.