When and how much to water

The different species belonging to the genus called Iberis are herbaceous plants that are simple to cultivate and adapt to different climatic contexts. Irrigation is not necessary during the winter season, while it begins to be regular starting from the first spring months. They do not require large quantities of water and can withstand even short periods of drought. However, if you want to obtain abundant and prolonged blooms, it is necessary not to miss the administration of water for too long. Furthermore, if they are grown in pots, great attention must be paid to water stagnation. In fact, the lack of watering drainage can cause dangerous rot and root mold to arise, which easily lead to the gradual deterioration of Iberis herbaceous plants.

How to take care of it

All the species and varieties of this genus do not require special care, in order to grow and flourish in a luxuriant way. They can adapt without too much difficulty to arid, not very fertile and stony soils, but prefer slightly alkaline substrates, loose and rich in organic matter. Rustic plants that are not afraid of winter temperatures but can be damaged by excessive frosts and climatic conditions below -10 ° C. In these cases, it is useful to make a good mulch that protects the root system during the colder months. According to the different species, plants of this genus can bloom starting from the first spring months, such as Iberis semperflorens and Iberis pruitii. Iberis aurosica, on the other hand, is characterized by its summer blooms.

When and how to fertilize

To obtain healthy and strong Iberis plants, it is advisable to periodically follow specific treatments based on liquid organic fertilizer. The ideal is to administer a fertilizer for flowering plants, rich in phosphorus and potassium, starting from the month of February. The procedure is repeated approximately every 15-20 days, throughout the summer until the arrival of autumn, diluting the fertilizer directly in the water intended for irrigation. In this way, the floral production that begins with the arrival of the spring season is adequately strengthened. Alternatively, it is possible to opt for a slow release granular fertilizer to be mixed with the surface layers of the substrate. The compound is administered twice a year, in the spring in May and in the autumn in October.

Iberis: Exposure, diseases and possible remedies

The perennial and annual herbaceous plants of Iberis, if grown in the northern areas, prefer bright and very sunny exposures. In the southern and coastal regions it is advisable to find a location that ensures a few hours of light, but it is important not to subject the plants to the sun during the hottest hours. In general, Iberis species are not sensitive to diseases and parasitic attacks. However, they can easily deteriorate due to water stagnation, which quickly leads to root rot and collar rot. To remedy this, irrigation must be stopped promptly, checking the state of the roots. Furthermore, it can also be affected by the so-called powdery mildew. In these cases, it is advisable to intervene with specific products based on copper and sulfur.

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