Watering and spraying
The ornamental plant, commonly also called Eustoma, originates from the north and center of the American continent and falls within the specific family group of Gentianaceae. This recently diffused and popular perennial herbaceous finds its primary use in the embellishment of interior spaces, and its inflorescences, in white, violet, pink and blue hues, are used for decoration recesses in solemn ceremonies. The growth of Lisianthus will be slow and gradual, until it reaches a height that will not exceed 50 cm, while flowering will take place in summer. The plant will need regular watering: in particular, it will have to be constantly sprayed during the spring and summer seasons, with midweek frequencies if necessary, with appropriate limitation of wetting during the cold periods of the year.
Care and culture
The Lisianthus will find its perfect accommodation in homes and offices, especially in the regions of northern Italy, although it will not be impossible to see it even in gardens and green spaces. It will need a soft earth full of organic substances, to which sandy and peaty materials must be conveniently added to ensure drainage, avoiding the phenomenon of water stagnation. On average every two years, the repotting of the plant will be allowed in the spring, using slightly wider containers to follow and favor the correct root development. On the other hand, pruning works will not be strictly necessary: the periodic removal of aged foliage and, in general, of the now withered parts will be sufficient and adequate to avoid the possible onset of diseases.
Fertilization and fertilization
The herbaceous plant will be properly fertilized in order to take the necessary and balanced nutrients. Fertilization will be carried out in the spring and even summer phases, with advisable bi-weekly frequency, and interrupted for the remaining part of the annuality. Preferably, liquid fertilizers should be used, after having dissolved them in the spraying water, where less frequent for the plant, although admissible, will be the use of solid, pellet-based, letamic based ones. The Lisianthus fertilizer will contain a significant prevalence of potassium and phosphorus components to the detriment of the residual macrocomponent of nitrogen, as well as a good supply of microelements, especially calcium together with magnesium. Phosphorus insufficiency will lead to a lower overall value of flowering.
Lisianthus: Exposure and pathologies
This ornamental plant thrives in an illuminated and sunny environment, enjoying direct exposure to solar radiation for part of the day, nevertheless it adapts with great ease to partially shady places. On the other hand, it suffers greatly from the harsh thermal conditions, so much so that it requires appropriate shelters and protections in winter. The Lisianthus, in conclusion, can sometimes be affected by mold and rot at the roots, due to the excess of environmental humidity or to the inefficient drainage of the soil, and attacked by harmful insects, such as the red spider and the cochineal. In this last circumstance, it will be necessary to promptly eliminate the pitfall, using biological products and detergents and removing them manually, if possible, or using specific and effective insecticide.