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The American vine

The irrigation of the American vine

Among all the climbers of the Vitaceae family of the Parthenocissus genus, the American vine is the one that is most sensitive to excessive watering. In this regard, it is necessary to distinguish between plants grown outdoors in the ground or in pots, and those grown in sheltered areas. For American vines placed in open places, it is necessary to wet the earth and proceed with irrigation only when it is dry. It is also advisable to proceed with watering only when no rain is expected, without making the soil soaked, whether placed in pots or in the ground. Water stagnation and too humid soils must also be avoided, bearing in mind that the American vine suffers more from being over-watered than from a lack of water. To work in this direction, one must naturally rely on one’s common sense, in full respect of the plant and its needs, verifying from time to time the state of the soil on which the roots of the plant rest. The same precautions must be followed if the American vine is planted in a sheltered place, where it is mandatory to proceed with watering every 2-3 days, especially in summer.

Taking care of the American vine


Also known as Ampelopsis Vitchii, the American vine can reach up to fifteen meters in height, especially if it rests on gazebos, walls or trees. Its climbing can be spontaneous, therefore it often does not even need to be properly fixed to the walls in order to grow. The ideal sowing takes place in spring (directly in the place where it will grow as an adult) or in autumn (in seedling, to be transplanted in spring). Its flowering period is summer, particularly in the months of June, July and August, during which it produces small flowers and the leaves become more majestic. The American vine grows quickly, but to do so it needs a temperate climate, sunny positions for half a day, organic soil that is moist but not excessively wet. It can grow exceptionally both in pots and in the ground, both outdoors and indoors, as long as you always carefully evaluate the humidity of the soil and the climate of the environment. The ideal pruning takes place during the winter, and can be both drastic and light, as in both cases it will strengthen and rejuvenate the plant which, for its part, will not suffer in any case.

American vine fertilization


The American vine grows very quickly, especially in summer. For this reason it needs a lot of nutrients and a well fertilized organic soil. Proper fertilization of the soil will allow the plant to grow luxuriantly and continuously, in relation to the place and environment in which it is placed. One of the most important elements that guarantee the luxuriant growth of the plant is certainly the positioning of manure in the ground, right from the first planting. The manure must be placed before covering the roots of the American vine with the earth, both for the planting in the garden and for that in pots. The manure will be very important in the juvenile growth period of the plant, while for the following years it will be advisable to fertilize the soil regularly during the winter, with the use of balanced granules or manure. Furthermore, in the soil of the American vine, especially if cultivated in pots, nitrogen should never be lacking. Nitrogen allows not only a homogeneous growth of the branches, but above all the creation of a good foliar luxuriance (essential for an ornamental use of the plant).

The American vine: diseases and possible remedies


One of the most common infestations that the American vine can be affected by is that of the Oidium. Oidium are small fungi that develop on the leaves especially when the plant is in a very humid environment and with poorly drained soil. Lo Odio is a whitish mold that covers all the leaves, significantly reducing the luxuriance and ending up also affecting the branches, to the point of making them soaked. To solve this type of disease, it is advisable to change the soil, make it drained, create a more temperate environment and prune the most infested branches of the plant. Another infestation can be that derived from aphids, which develop in small groups and feed on the sap of the leaves and branches, progressively inducing the death of the American vine. L’ the only method to fight them is that which makes use of special insecticides, which can be purchased in the most common specialized shops. Finally, the last disease to which American vines can be subjected are those derived from scale insects, that is, from small parasites that also feed on the sap. They can be counteracted with the use of products based on pine oil.

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