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Thuja occidentalis

The genus of plants called Thuja occidentalis

The so-called Thuja occidentalis species belongs to the Cupressaceae family and is native to the North American continent. Conifers suitable for harsh mountain climates and rocky soils. They are evergreen plants and the foliage takes on a pyramidal appearance over time. The stem is very branched from the base while the leaves are small, flattened and scaly. If rubbed, they release a strong and persistent fruity aroma. Flowering is inconspicuous and occurs in spring, subsequently the fruits of an oval or globular shape of dark color appear. Among the most ornamental varieties of this species is the Thuja occidentalis Danica with bright green leaves or the Thuja occidentalis Rheingold which is characterized by the yellow or golden color of the foliage.

Cultivation techniques of the Thuja occidentalis plant


Simple to grow conifers, Thuja occidentalis plants adapt to various environmental and climatic contexts. They withstand the cold winter temperatures, well below zero and grow luxuriantly even near the sea but must be protected from strong currents. They prefer humid places and fresh, even calcareous soils, consisting of garden soil, peat and a portion of sand. Exposures can be sunny but develop best in partial shade. It is not necessary to irrigate in autumn and winter, while with the arrival of the spring season, watering becomes regular and necessary, especially in the dry summer periods. To provide all the useful nutrients to Thuja occidentalis specimens, it is necessary to administer humus and compost in autumn and spring.

Methods of propagation of Thuja occidentalis conifers


The specimens of Thuja occidentalis can be propagated by seed but the procedure requires special attention and a long time before obtaining plants to be planted definitively. Alternatively, it is possible to multiply the vegetables with the cutting method. Apical peaks with a length of about fifteen centimeters are selected. The best season to cut the cuttings is in spring, before being planted it is advisable to scarify and treat the wounds with rooting and pesticide powder. The soil is composed of garden soil mixed with peat and sand, to maintain the correct degree of humidity it is necessary to spray regularly. In the space of two, three months, the new leaf buds will appear, confirming the

Pruning and adversity of Thuja occidentalis plants


The plants of Thuja occidentalis tolerate well the pruning interventions to be carried out to achieve and maintain the orderly appearance of the foliage. The best times are in late winter or early autumn. With the arrival of spring it is important to free the Thuja occidentalis plants from dry branches damaged by the cold. These hedges maintain a compact and upright habit which facilitates the maintenance of the desired shape. Young plants can be attacked by aphids and mites, it is important to stop the infestation as soon as possible, using specific products composed of mineral oil. In addition, they fear the fungal diseases of the cypress that affects the foliage, a pathology difficult to cure, which characterizes all the species included in this genus of conifers.

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