Lisianthus, also called eustoma, is a plant belonging to the gentianaceae which was first discovered and studied by botanists in the United States in 1800. At the turn of the century it was then exported to Scotland and slowly to the rest of Europe. , but it only really caught on in the 20th century. In recent decades, the lisianthus and its beautiful flower have become very popular, and today they are grown practically all over the world. The name eustoma comes from the Greek, where eu means beautiful, while stoma means mouth, hence it is believed that the name was given because this flower was given to the beloved. Today, in the language of flowers, the lisianthus also indicates beauty, grace and refinement. It is a perennial and can be grown as such if kept in an apartment;
To see the lisianthus flower bloom, you have to know how to cultivate this plant. If you want to plant it in your garden, the seeds should be planted in winter, but it should be noted that this species does not tolerate temperatures below five degrees. Therefore, if you live in particularly cold regions, it is better to opt for pot culture. In any case, the lisianthus prefers airy positions but not exposed to cold and bad weather. Note that it is a plant that grows very slowly: it is made up of long and light stems, which can reach up to forty-five centimeters in height, and very large leaves of a very bright green, which tend to acquire a suggestive bluish tone. Bell-shaped flowers appear at the top of the stems in summer and can be pink or purple, with varying shades. However, now there are many hybrid varieties, so you can easily see species with yellow or even red flowers.
The most common variety of eustema is undoubtedly the pink lisianthus, which is also the most beautiful and elegant to look at. It is generally a hardy and resistant plant, but it must still be taken care of, because in altered conditions it dies easily. If you keep it outside in a pot, you can also put it inside in the winter, as long as it is away from radiators and other sources of high heat. Indeed, these plants prefer to stay in the sun, although it is best to avoid them during the hottest hours of the day, especially in summer. From early spring to late summer, lisianthus should be watered regularly, but the soil should dry out well between waterings. During the cold season, however, we must give our specimens less water. In any case, water stagnation should always be avoided,
In order for lisianthus flowers to always be beautiful and plentiful, a few basic operations must be carried out. First, every two or three years, in the spring, the plant must be transplanted. A suitable soil must be prepared, with peat, sand and organic soil. About once a month, during the summer, the plant must also be fertilized, with a specific product to be dissolved in normal irrigation water. The important thing is that this fertilizer contains useful nutrients for the plant, such as phosphorus, nitrogen, potassium and iron. Pruning, on the other hand, is not an essential operation for a lisianthus specimen: it will suffice to remove damaged or dry leaves and stems. Side parasites, it is necessary to pay attention to the mites, red spiders and cochineals, enemies of the eustoma. But there are also diseases that generally affect this species: if the leaves show light spots and then dry out, this means that the plant is the victim of an attack by oidiopsis, a fungus. To eliminate it, a specific product must be administered.