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Albero di giuda

Water needs

This tree reaches a height of about 7 meters, used in gardens as an ornamental tree both for the complex shape that its trunk assumes, and for the colorful flowers it produces, some of which are tied directly to the trunk. Given its rurality, rainwater is generally sufficient and no further interventions are necessary. Irrigation takes on great importance in the case of periods of prolonged drought, which are tolerated by the tree but which can compromise flowering. It is preferable to keep the cultivation soil moist and cool during the summer, but water stagnation must be absolutely avoided, which could cause root rot and make the plant vulnerable to attack by pathogens. In winter it is preferable not to expose the plant to frost,

How to take care of it


The Judas tree grows mainly in the wild, therefore it does not require special attention. Its flowering is optimized in places exposed for many hours to direct sunlight, not too subject to the action of winds and on preferably calcareous and well-draining soils; the pH of the soil must also be between neutral and slightly acidic, while basic pHs are not tolerated. Pruning must be carried out in late summer and must have the purpose of eliminating branches or damaged parts and giving a shape to the crown of the tree. Pruning interventions must generally be limited and non-invasive, except in the case in which the tree appears seriously compromised by frosts or attacks by parasites. The flowers, if picked in spring when they are still fresh,

When and how much to fertilize


The fertilization of the Judas tree can be considered superfluous, as it should not be done in the wild. However, if it is planted in gardens for ornamental or culinary purposes, fertilization interventions are recommended to stimulate blossoming. Since the tree has a symbiotic relationship with some strains of nitrogen-fixing bacteria, the fertilizer used must be low in this element. One of the most suitable fertilizers, therefore, is slow release mature manure, particularly rich in potassium (which stimulates flowering). The consistency of this fertilizer must be granular, so as not to over-compact the soil and to help make it draining. It is recommended to carry out the intervention in November, in order to guarantee a

Judas tree: Diseases and pests


Although the tree is resistant to attack by aphids, it is more vulnerable to attacks by scale insects and spider mites, which can be treated with special pesticides. Another insect that can rarely attack the siliquaster is the psylla, a phytophagous that has proliferated in recent years due to chemical treatments that have eradicated its natural enemies. They generally attack the young parts of the plant and, due to the bites they make to feed, cause necrosis. Furthermore, they secrete a sugary solution which, accumulating on the vegetative organs, causes both asphyxiation and the concentration of the sun’s rays, with consequent burns. Psylla can be eliminated by using an abamectin-based pesticide,

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