Plants

Ilex verticillata

When and how much to water Ilex verticillata plants

The Ilex verticillata more commonly known by the name of Holly is a plant native and typical of the European continent. Irrigation is not a fundamental aspect for growth, but in young and newly planted specimens, care must be taken to never lack the correct water supply necessary for the luxuriant development of these evergreens. The already adult specimens of Ilex verticillata are almost completely autonomous and according to the different cultivation areas, they may require regular watering only during the months of late spring and summer, especially in July and August. In any case, it is essential not to create dangerous water stagnations in the substrate, as they seriously damage the root system, leading to the onset of mold and rot.

How to take care of Ilex verticillata plants


The specimens of Ilex verticillata thrive in cool environments, where the summer seasons are not very hot and muggy. In fact, this plant species prefers continental climatic conditions, tolerating temperatures well below 10 degrees below zero without great difficulty. In general, it adapts very well to various types of soil, except for clayey and alkaline soils. However, Ilex verticillata plants prefer well-drained and medium-textured substrates, consisting of universal soil, peat and a good dose of very mature manure. The recommended period for planting is towards the end of winter, while pruning is necessary only to eliminate the dry and damaged branches from the winter season.

When and how to fertilize Ilex verticillata plants


Fertilizing the plants of the Ilex verticillata species is essential to obtain healthy, lush and leafy specimens. In fact, it is very important to dispense periodic doses of fertilizer, in order to support the growth of shrubs and trees. With the vegetative restart in spring, it is advisable to opt for a good fertilizer rich in potassium and nitrogen, essential macroelements to guarantee the emission of new shoots. The operation is repeated until the arrival of summer and is suspended during the hottest months of July and August. To prepare the specimens of Ilex verticillata for the cold seasons, it is recommended to provide a well-mature manure to be mixed with the surface layers of the soil. In addition, it is useful from time to time to administer iron sulphate as well.

Ilex verticillata: exposure, diseases and remedies


The shrubs and trees of Ilex verticillata grown in the northern areas prefer sunny and very bright exposures. On the contrary, in the southern regions it is necessary to choose a cool location sheltered from direct contact with the sun’s rays. If plants are not kept in optimal conditions, they can be affected by various diseases. These include rust, a disease recognizable by the yellow or black spots that begin to develop on the upper side of the leaves. It is essential to intervene promptly, using appropriate fungicides or using Bordeaux mixture. Furthermore, the plants of Ilex verticillata can be attacked by the cochineal. If the infestation is widespread, it is essential to treat the plants with anticoccidials.

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