evergreen conifer native to Asia, and in particular to Japan; in nature these trees can reach 25-30 meters in height. It has an erect trunk, with smooth bark in young specimens, which becomes thick and wrinkled with the years; the crown is pyramidal, very dense and branched, tends to be slightly rounded in mature specimens; the needles are bluish-green in color and clustered in bunches of five, as the name suggests. It produces small inflorescences and then small dark brown pine cones. This conifer is quite advisable for beginners, as it is easy to cultivate, although it can be difficult to get the branches in shape and contain the growth of the needles, however there are numerous cultivars, some of which with small needles.
Pruning and exposure
Pruning: trim the shoots when they are still closed, in early spring; training pruning is done in autumn or late winter. The metal wire can be placed in the cold months of the year.
Exposure: place in a sunny and well ventilated place; in the hottest months of the year it is best to transfer to a shady place, to avoid excessive insolation and high temperatures; generally these conifers do not fear the winter cold, even if in cases of very intense and prolonged frosts it is good to cover the pot with TNT.
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Watering: from March to October water regularly, waiting for the soil to dry on the surface between one watering and the next; in the cold months it is preferable to reduce watering, providing water only when the soil is dry. In the months of greater vegetative development, it is good to provide universal fertilizer every 10-15 days. In summer it is good to steam the hair often with demineralized water.
the pinus pentaphylla they love well-drained, loose and soft soils, possibly with a slightly acidic pH; it is good to use a compound consisting of a part of peat, a part of clay and a part of sand. These plants grow quite quickly in the first years, so they must be repotted, in early spring, every 2-3 years, avoiding to shorten the roots too much.
Pine, Five-needle pine - Pinu pentaphylla: Multiplication and disease
Multiplication: they can be propagated by seed, at the beginning of spring; often these pines are the fruit of grafting.
Pests and diseases: pay attention to aphids and mites; the pinus pentaphylla they are prone to fungal diseases that copy the root system.