How to raise potted Luohansong?

Luohan pine, also known as Luohan pine, gold pine, Luohanbai, etc., is an evergreen coniferous tree of Luohan pine family, with extremely high ornamental value, lush and elegant tree appearance, ancient and vigorous, fresh green leaf color all the year round, and a sense of vitality and nobleness. If attached to the posture of rock making into eagle claw stone, it is more quaint and chic. Let's take a look at how to raise potted Luohansong.

Growth habits of Pinus elliottii

Luohan pine is produced in Jiangsu, Zhejiang, Fujian, Anhui, Jiangxi, Hunan, Sichuan, Yunnan, Guizhou, Guangxi, Guangdong and other provinces and regions, cultivated in the garden as ornamental trees, few wild trees. Like warm and humid climate, weak cold resistance, strong negative resistance, like sandy loam with good drainage, strong adaptability to soil, can also survive on saline-alkali soil, strong resistance to sulfur dioxide, hydrogen sulfide, nitrogen oxide and other pollution gases, strong resistance to diseases and insect pests.

Propagation methods of Pinus elliottii

1. Sowing: the seeds of Pinus elliottii had better be sown with picking and not stored in summer. Soak the seeds for several days first, and then strip sow or sow on demand after the seeds are fully absorbed and swollen. The sowing depth is better to cover the seeds, cover the grass to moisturize after sowing, and spray water once a day. If sowing in the open field, it is also necessary to cover grass to survive the winter in the southwest. Pot sowing is needed in other areas, and after sowing, it is moved to a low-temperature greenhouse to overwinter. The seedlings can be unearthed in 8 to 10 days. Remove the cover grass and shade immediately after being unearthed. Do not expose yourself to the sun.

2. Striping: the striping propagation of Luohansong should be carried out before and after the stinging solar term in spring. select the branches that are slightly smaller than chopsticks near the ground, cut the branches obliquely with a knife on the side near the ground, and insert an inch-long piece of bamboo into the incision horizontally with a prepared one-inch-long piece of bamboo. Insert a small stick to support the branch, tie it up gently with plastic tape, then cover the cut with loose soil, gently compacted, and covered with withered grass to keep moist. After March, the branch can take root at the cut.

3. Cuttage

① softwood cuttings: the softwood cuttings of Luohan pine were conducted from mid-late May to early July in the first half of the year, and from mid-late August to mid-late September in the second half of the year. Seedlings planted in the first half of the year should pay attention to prevent high temperature burns and diseases, and seedlings planted in the second half of the year should pay attention to heat preservation and anti-freezing in the middle and later stages. The time to uncover the shading net is late November, and the time to uncover the shading net in dry years can be extended to late December.

② hardwood cutting: hardwood cutting refers to the dormant stage in which the sap has not yet flowed from February to March in early spring, cutting the sturdy branches completely lignified in the previous year for cutting. what should be paid attention to in early spring hardwood cutting is to improve the soil temperature and control the air temperature in the greenhouse.

How to raise potted Luohansong?

1. Soil: Luohansong likes sandy loam with good drainage, strong adaptability to soil, and can survive on saline-alkali soil. Culture requires slightly acidic culture soil rich in humus, loose, fertile and good drainage, and leaves are yellowed in alkaline soil. Slow growth, long life, can reach hundreds of years, or even more than a thousand years.

2. Transplant: the best transplant of Luohansong is from March to April in spring, small seedlings need to carry soil, large seedlings with soil balls, can also be potted. After planting, the soil should be watered thoroughly, the soil should be kept moist during the growing period, and the semi-shaded place should be preserved in high temperature season in midsummer, and fertilized once every 2 months. Potted plants should be protected against cold in winter, pots can be buried in the soil and watering can be reduced.

3. Watering: Luohansong is not a Pinaceae plant and is not resistant to drought. On the contrary, Luohansong is resistant to Yin and dampness, so it should be watered frequently during the growing period, but it should not be watered. Shunde area should pay attention to regular watering when it is sunny in summer, generally watering once in the morning and evening, and often spraying foliar water to make the leaves bright green and grow well. Rain Water is usually more in summer. Luo Hansong is not resistant to waterlogging, so we should pay attention to prevent stagnant water for a long time.

4. Sunshine: Pinus elliottii is a neutral and negative tree species, which can not only accept strong light, but also grow in a shady environment. Although the temperature is high and the sun is strong in summer, it is not necessary to shade the tree in summer because the tree is propitious to maintain its leaf shape under the condition of high temperature and strong light. Because of the tender tissue, the seedlings of Luohan pine should not be exposed to strong light for a long time, so it is suggested that they should be preserved in the shade.

5, temperature: potted plants in the north, leave the room when the outdoor air temperature is stable at about 10 ℃, put it outside in the leeward and sunny place, and move to the semi-shady place after summer. When the temperature does not drop to 5 ℃ in winter, you should enter the room and control the watering after entering the room, so that you can survive the winter safely without freezing.

6. Fertilization: Luohansong likes fertilizer, should be thin fertilizer frequently, fertilizer is mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer, can add appropriate amount of black alum, retting into alum fertilizer water. The combination of changing pots in spring, applying sufficient base fertilizer, applying some thin alum fertilizer during the growing season, and often applying 01% urea and 3% leftover beer can make the leaves thick and green. During the growing period, fertilization can be applied once every two months, and fertilization can be combined with watering at the same time (the ratio of water and fertilizer is 9:1).

7. Shaping: Luohansong is a whorled branch. According to the customized potential of the trunk, the random branch is cut off, 2-3 branches are retained in the appropriate position, and the branch is bound with wire to make the main branch droop slightly and the skill is not strong. Every year June, July each trim, usually take the heart to pick the heart mainly (generally should wait for the twig Lignification to pick the heart).

8. Diseases and pests: the main diseases of Luohan pine are leaf spot and anthracnose, which can be sprayed with 500 times of 50% methyl topiramate wettable powder. As long as the pests of Luohan pine include shell insects, red spiders and large coir moths, they can be sprayed with 1500 times of omethoate EC.