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Nasturtium

How and when to irrigate

The irrigations of Nasturtium specimens vary according to the geographical context in which they are grown. In fact, in the northern areas watering is necessary starting from spring and throughout the summer. The ideal is to provide the plants with little water but dispensed frequently, once twice a week. On the other hand, plants that grow in coastal areas, characterized by a hot and sultry summer climate, need larger quantities and regular feedings, even several times a week. A correct water supply will prolong floral production, making it more abundant. Watering must be reduced with the arrival of autumn and winter. Furthermore, it is advisable to repair Nasturtium plants from excessive rains, which could lead to the onset of diseases to the root system.

How to take care of it


All species and varieties of Nasturtium, perennial or annual, are also suitable for the less experienced, as they do not require special attention during the entire cultivation cycle. In fact, they can grow without any difficulty in different types of soil. In any case, a substrate consisting of garden soil, coarse sand and peat is indicated to obtain a copious spring and summer flowering. It is very important that an optimal drainage of irrigation is ensured, as these plants can easily suffer from water stagnation. Nasturtium plants propagate by seed, the best time to plant them is in spring, when temperatures stabilize above 10 degrees. They are not afraid of hot temperatures but can suffer from sultry climates.

When and how much to fertilize


The fertilizations can vary according to the age of the Nasturtium plants. If young and recently sown specimens are grown, it is advisable to wait for the first buds to emit before starting to administer a specific organic fertilizer for flowering plants. The fertilizer is dispensed approximately every two weeks and the operation is repeated for the duration of the summer. The adult specimens have different needs and like periodic fertilizations, starting from the month of March. In this way, all the nutrients necessary for abundant flowering are provided. With the arrival of the autumn season and the first colds, the administrations are thinned out and suspended for the entire duration of the vegetative rest, resuming directly the following year.

Nasturtium: Exposure, diseases and possible remedies


Nasturtium species grown in territories where the climate is continental and the winter seasons are very cold, need a sunny exposure. On the contrary, in the southern regions the lighting must be regulated, as prolonged exposure to sunlight can burn the leaves. The ideal is to choose a location in partial shade, bright in the morning. Generally, these plants are resistant to pest attacks and diseases. However, they can suffer attacks from scale insects and aphids, to intervene it is possible to resort to neutral soap or to use specific insecticides. Furthermore, if the humidity is too high, they can get sick of the so-called powdery mildew or white disease, in this case the treatment involves the administration of solutions based on copper and sulfur.

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