How much and when to water

A danger, for edgeworthia, is represented by water stagnation: these can cause widespread rot, in particular at the roots, and consequently determine the deterioration of the plant. For this reason it is important to carry out watering constantly in periods of drought, especially in summer, and to limit it if rainfall is abundant. In any case, the soil must never remain totally dry for too long: this would cause considerable damage to the flowering. It is therefore recommended to distribute water resources carefully and regularly, and to use water poor in limestone, preferably demineralized or rainwater; an alternative method is to let the water to be administered boil, and then use it the next day after a night’s rest.

Growing tips

This plant needs well-drained soil: for this purpose it is suggested to mix a small amount of sand or pumice stone to the soil, in addition to peat. In addition, the soil must be acidic, soft and airy. Before planting it is essential to properly work the soil, in order to make it softer and to eliminate any weeds that could compromise an optimal development of the specimen; cultivation can occur both in pots and in the open ground. Multiplication by cuttings is recommended in the spring or autumn season, as seed multiplication takes a much longer period of time. Pruning should not be practiced frequently, but is aimed only at removing dry or excessively protruding branches.


Fertilization must take place twice a year, in spring and autumn, with slow-release fertilizers rich in nitrogen, phosphorus and potassium, or with organic products such as manure. The three macroelements play an indispensable role in the development of the plant: nitrogen contributes to the growth of the vegetative parts, phosphorus strengthens the root system and intervenes in the metabolic processes, potassium regulates the absorption of sugars and increases resistance to cold. and parasites. A deficiency of these three elements can be very dangerous, as it causes a weakening of the plant and, in some cases, chlorosis of the leaves. The ideal fertilizer also contains microelements such as iron and manganese, essential for the synthesis of chlorophyll, and molybdenum,

Edgeworthia: Exposure, pests and diseases

Edgeworthia is quite cold-hardy, but winds that are too strong can cause serious damage; the exposure must therefore take place in a place sheltered from bad weather. The ideal environment is sunny and bright, even if the plant still grows in partial shade. In general, attacks by parasites are not frequent, but sometimes infestations of aphids or scale insects can occur, easily countered with natural remedies such as nettle macerate for the former and white mineral oil for the latter; aphids are dangerous as they suck the sap of the plant and represent a carrier of viruses, the scale insects cause yellowing and deterioration of the leaves. This species is not subject to particular diseases, apart from the rottenness of the roots caused by an excess of humidity.

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