How to irrigate agapanthus

If the cultivation takes place in pots, this plant needs regular watering, particularly in summer; the important thing is that the operation does not take place during the hottest hours and that the soil has time to dry out between irrigations. In the garden, however, the administration of water resources must be regulated according to the season and rainfall: it must be intensified between the beginning of April and the end of August, and limited instead in the autumn and winter period, especially if the rains are frequent. . It is recommended to avoid stagnations, which are very dangerous for the plant as they cause widespread rotting of the roots and other types of fungal diseases. The ideal is to use rainwater or demineralized water for watering;

Advice for care and cultivation

The agapanthus multiplies by sowing, generally in the spring season, or by division of the rhizome; the plant must take place in a soft, deep, fertile and well-drained soil to avoid water stagnation. If you decide to grow in pots, it is advisable to choose a container with a diameter of 20-30 centimeters and to fill it with garden soil mixed with handfuls of manure. If planting takes place in the ground, however, it is essential to work the soil with a special tool, such as a spade, in order to lighten it and promote drainage. Periodically it is necessary to eliminate the dry leaves and the withered flowers, paying attention to make neat and clean cuts, to avoid the risk of infections: therefore, it is necessary to use disinfected shears.


The fertilization of this plant is divided into two phases: the first must be completed in spring, the second in autumn. In the first case it is necessary to ensure the cultivated specimen a high quantity of potassium, an element that guarantees greater resistance to parasites, supports the synthesis of proteins and helps the absorption of sugars and the production of ATP. The second fertilization, on the other hand, must ensure in particular phosphorus, the second fundamental macro-element, which intervenes in the various processes of metabolism. A third element to be supplied to the plant, both in spring and autumn, is nitrogen, which takes part in the growth of tissues and vegetative parts. If the soil is already rich in these substances, a natural fertilizer may be sufficient.

Agapanthus: Exposure, pests and diseases

The recommended exposure for the agapanthus is sunny, bright and protected from too strong winds that could cause damage to the flowers; the plant, however, grows well even in partial shade and tolerates the cold rather easily. Furthermore, its resistance to parasites is noteworthy, of which infestation rarely occurs. However, sometimes attacks by snails and snails can occur, which feed on the leaves and cause problems both for the health of the plant and its external appearance; the ideal solution is to remove them manually, before their number becomes excessive. Furthermore, it is possible that an overabundant humidity determines fungal diseases such as molds and rot, against which it is suggested to use specific fungicide products or treatments based on Bordeaux mixture.

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