Oregon Green Pine: black variety description, planting and care, application
Oregon Green Pine is considered a relatively young crop, which was obtained in 1996. This plant is quite undemanding to care for. It can be applied to medium to large areas and planted in groups, respecting the spacing between plants. Culture develops equally well in the city and in suburban areas. It is resistant to air pollution.
Description and features
This black pine variety was obtained in 1996 in the USA. An adult culture reaches a height of 8-15 centimeters. Moreover, its diameter is 3-8 meters.By the age of 10, the plant often reaches 4 meters. During the year, the culture increases by 20-30 centimeters. Specific parameters depend on care and external factors.
Oregon Green black pine has a neat conical or pyramidal crown. Sometimes it becomes asymmetrical. White buds, which reach a length of 2.5 centimeters, give additional decorativeness to the tree. In addition, the plant has light young growths that grow vertically.
Pine is distinguished by densely planted needles, which are tightly pressed to the branches. Needles can be straight or slightly curved. They are dark green in color and form bunches of 2 pieces. The needles have a solid structure and stay on the branches for a long time. The tree is characterized by brown cones of an ovoid or elliptical shape. Their sizes reach 3-8 centimeters. The fruits grow on small petioles one at a time or form groups of 2-3 pieces.
The main features of this pine variety include the following:
- high frost resistance;
- wind resistant;
- light-loving - while the culture is able to withstand a slight penumbra;
- resistance to salinity and slight alkalization of the soil;
- excellent development in fertile and slightly moist soil;
- resistance to gas and smoke in the air;
- risk of sunburn in young seedlings - this is most often observed in winter and spring.
Where wood is used
Pinus nigra Oregon Green can be the centerpiece of the whole composition. Adult culture takes up a lot of space. Its trunk circle has a size of at least 4 meters. Therefore, planting such a pine in small areas is not worth it. For large spaces, a composition of several pines is suitable.Also, the culture will perfectly complement the Japanese garden or alpine slide. However, in this case, it is necessary to constantly adjust the shape of the crown.
Landing - tips for beginners
Oregon Green Pine thrives in loamy and sandy soil that has good drainage. However, the plant can be placed in other types of soil. The best time for planting is the end of April or the beginning of September.
The landing depth should be 80-100 centimeters. At the same time, it is recommended to place a substrate of turf, the top layer of soil and river sand with clay at the bottom. These components are mixed in a ratio of 2:2:1. When planting, it is important to ensure that the root neck is flush with the ground.
Expert opinionZarechny Maxim ValerievichAgronomist with 12 years of experience. Our best gardening expert.Ask a QuestionImmediately after planting, the culture needs abundant watering. After that, the trunk circle must be covered with a thick layer of mulch. If organomineral fertilizer for conifers was not added to the prepared substrate, it can be embedded in the soil under the mulch.Further care
When growing pine, it is important to adhere to the rules of agricultural technology. At the same time, it is important to systematically loosen the earth and get rid of weeds. During the adaptation period, these procedures should be carried out regularly. It is recommended to do this for at least 2-3 years. Subsequently, such laborious care will not be required.
During the first 2 years after planting, mineral fertilizers should be applied to the soil. At the same time, it is recommended to use 40 grams of such substances per 1 square meter. Usually, special fertilizers are used for conifers. In autumn, young seedlings need abundant watering. This will help to avoid burns with the advent of spring.
Pine of this variety does not require shaping pruning. These procedures are carried out only in the case of planting a crop on an alpine hill or in a Japanese garden. In addition, it is important to pinch young shoots to a third of the length. This will help make the crown more lush. Pruning should be done from late May to June.
The plant is considered to be very resistant to frost. It is able to withstand temperatures down to -34 degrees. Young seedlings are recommended to be covered for the winter with a non-woven fabric. You should not use plastic wrap for this purpose.
Disease prevention
Pine of this variety often faces pest attacks. The most dangerous parasites include the following:
- Sawflies - hit pine needles. To cope with these pests, pyrethroids are used. However, parasites can be harvested from young plants by hand.
- Scoop - causes damage to the needles. "Decis" , "Aktara" , "Engio" help to cope with butterflies.
- Shield - eats needles, which leads to its death. Tools such as Calypso or Confidor Maxi help to destroy these pests.
- Bark beetles - make holes in the tree. To avoid problems, preventive treatment should be carried out in the spring. For this purpose, it is worth using "Bifenthrin" .
- Pine hermes - when a tree is affected by this pest, a white coating appears on the branches. In this case, 3 insecticide treatments should be carried out. They do it in April, May and June.
Oregon Green Pine suffers not only from pest attacks, but also from various diseases. Fungicides help to cope with them. Most often, the tree is exposed to such pathologies:
- Pine cancer - in this case, you need to clean the affected area, cut and destroy the branches. Unaffected fragments should be treated with a solution of copper sulfate with a concentration of 1%.
- Rust - to treat the plant, you should use "Champion" , "Kuproksat" and other antifungal agents.
- Schütte - is a fungal infection that affects mature trees. Fungicides will help to cope with the problem.
Narrow-spectrum products should be used once per season. At the same time, substances such as Kartocide can be used more often - up to 3 times during the season. In addition, it is permissible to combine it with other drugs.
The Oregon Green Pine is an attractive ornamental crop that makes a great addition to a wide variety of arrangements. In order for the plant to develop normally, it is important to carry out planting work correctly. It is also worth strictly adhering to the rules of agricultural technology and providing the plant with protection from diseases and pests.
