Why do nasturtium leaves turn yellow and what to do about it?

If the leaves of nasturtium growing on the street or on the balcony in pots turn yellow, then in most cases this is a natural process, because this phenomenon often indicates the onset of autumn days. However, if this happens during the growing season, then this means that the flower has problems. What reasons can cause yellowness of the upper and lower leaves of the plant and what to do about it, we will tell in this article.

If the leaves of nasturtium turn yellow, then this phenomenon may indicate that your plant is sick. As a rule, yellowness is caused by such a dangerous viral disease as mosaic. It is dangerous because it is quite difficult to treat it, especially when it comes to an advanced case.

Usually, if this viral disease was noticed on time, then it is enough only to remove the diseased leaves, and then subject the flower itself to treatment with "Karbofos".

However, the appearance of a mosaic in nasturtium can be prevented. To do this, it is worthwhile to eliminate pests in time, which not only cause huge damage to plantings and reduce their immunity, but also are carriers of various infections. In addition, it is also recommended to get rid of weeds when it comes to outdoor nasturtium - weeds are the main habitat of parasites.

Another disease of nasturtium, which causes its characteristic yellowness on the leaves, is chlorosis. With chlorosis, not only the leaf plate suffers, which turns yellow, curls and becomes small, but also the rest of the culture: the plant sheds flower ovaries. Usually, this disease indicates that the plant does not have enough iron or it simply cannot extract the necessary chemical element from the soil in order to subsequently use it to maintain the green mass.

Improper care is fraught with not the best consequences for any, even the most picky cultivated plant. Errors in this regard and nasturtium are harmful.

Often this flower suffers from too high soil moisture. Therefore, if the leaves turn yellow, then it is the excess moisture that can cause this. If abundant watering continues further, then there is a risk that the fungus will begin to develop, which in the future can lead to decay of the root system. To save the flower, it is recommended to stop watering, and then return it, but not more often than once a week.

Another reason for the yellowness of the leaves is burns. They occur, as a rule, in those cases when water, even its smallest drops, falls on the leaf plate during irrigation, while the bright sun is shining in the yard. Subsequently, a burn occurs, which manifests itself in the form of yellow spots on the leaves, which, moreover, also dry out.

Bad soil can also cause many problems. Usually, if the foliage turns yellow, then this indicates a lack of manganese or nitrogen. With a deficiency of the latter, old leaves begin to turn yellow, but over time, the problem also affects young foliage.