How to raise a potted yew?

Taxus is endemic to China, also known as Yew, Taxus, Guanyin Taxus, etc., is a yew family yew tree plants, China's national first-class rare protection tree species, is a shallow root plant, its main root is not obvious, lateral roots are developed, the world is recognized as endangered natural rare anti-cancer plants, let's take a look at potted yew how to raise it!

Growth habits of Taxus mairei

Taxus chinensis has the characteristics of shade-loving, drought-tolerant and cold-resistant, and the soil pH value is required to be 5.5-7.0. It is shade-tolerant and can grow under dense forests, mostly in coniferous and broad-leaved mixed forests dominated by Pinus koraiensis, and on stony or barren soil on the top of the mountain, mostly in the form of shrubs. Mostly scattered under the moist, fertile coniferous and broad-leaved mixed forest on shady or semi-shady slopes. Like cool and humid climate, can withstand low temperature below minus 30 ℃, strong cold resistance, the optimum temperature is 20: 25 ℃. Like moist but afraid of waterlogging, suitable for planting on loose, moist and well drained sandy loam.

Propagation methods of Taxus mairei

1. Sowing: Taxus is generally sown in early spring. After 1 year of seed storage, 30% of the seeds are white, sift out the seeds in time, disinfect them in 0.2% potassium permanganate solution for 10 minutes, rinse them with clean water and sow them evenly in the ditch after drying the water. After sowing, the yellow loam soil with mycorrhiza and sifted under the pine forest was dug to cover the seeds, and the thickness was no seed. Pay attention to shading in the seedling stage, build a shade shed in the seedling stage, and the seed emergence rate is more than 70%.

2. Cutting: in the period of dormancy and germination of trees, the mixed substrate of sand, sawdust and perlite was selected as cutting soil. Select 1 ~ 4-year-old lignified branches and cut the cuttings into small segments 10 cm, 15 cm or 30 cm long. when pruning, the cut should be smooth, lower cut Malt-shaped, and the leaves should be removed below 2 cm. After cuttings were treated with chemicals such as ATP, ABT, NAA, IBAA and so on, the cuttage survival rate was generally more than 85%.

How to raise a potted yew?

1. Illumination: the yew is a shady and drought-tolerant plant, which should be placed indoors, shaded properly in summer, not in the room with western sunshine, and not in the air outlet of the air conditioner or next to the heater. that will make the yew leaves water evaporation, lead to branches and leaves dehydration, and finally the leaves curl, dry. The sunshine time in summer is as short as possible, while autumn and spring can be longer.

2. Potted soil: the yew chooses a slightly larger flowerpot and punches more holes in the lower part of the pot to enhance the water permeability and air permeability of the flowerpot. The soil should be loose, rich in humus, fertile, water conservation, fertilizer conservation, breathable soil, the soil is slightly acidic, loam is the best. Clay is impermeable, sand keeps fertilizer and water retention is poor, so it is not suitable to be used. In addition, peat soil, perlite and loam can also be used to form a mixed cultivation medium.

3, moisture: yew basin soil surface appears a little yellow and white, the leaves are slightly curled, do not need to water, just spray the page. When the soil turns white, it should be watered. Watering should be thoroughly watered at once, so that the basin soil can fully absorb enough water. Water every 15-20 days outdoors and once every 20-25 days indoors. Soil moisture content is about 40%. Pay attention to excessive watering and frequent watering will cause yew roots to rot.

4. Fertilization: 0.2 jin of organic fertilizer and 0.02 jin of compound fertilizer are applied per yew potted plant, and farm manure and cake fertilizer (such as cottonseed cake, peanut cake, sesame cake) can also be applied. Fertilizer should be applied along the pot wall as far as possible, not close to the root of Taxus mairei. In general, the newly bought yew bonsai has nutritious soil, which does not need to be fertilized within 3 months, and then applied once every 2 to 3 months.

5. Change the pot: about a year later, the seedlings grow up gradually and the roots are well developed, so it is necessary to transplant and change the pot. Break the old basin without damaging the original soil ball, move it into the new basin, and water the root to ensure the close combination of the root system and the soil and ensure survival. If there are conditions, yew seedlings can be transplanted to the field, the growth rate will be faster.

6. Trimming: the lower branches of the yew bonsai grow too dense, and the dry yellow leaves will fall off. Part of the branches that are too dense can be trimmed off, and they can be shaped arbitrarily in the process of pruning, such as umbrella type, tower type, round type and so on. In order to keep the crown of Taxus mairei graceful, the terminal bud and some lateral buds can be removed moderately.

7. Diseases and insect pests: under normal circumstances, there are very few insect pests in the yew. If the yew is found to be withered and yellow or diseases and insect pests are found, it can be irrigated or sprayed with methyl topiramate and potassium dihydrogen phosphate. Taxus will have root rot, stem rot and rotten roots during the rainy season, especially young trees, and can be sprayed with dimethazone for maintenance. Leaf blight and bacterial blight are easy to occur in high temperature and dry season, which can be controlled by spraying Bordeaux solution.

Matters needing attention of Taxus chinensis

1. Please do not put the yew bonsai in the air conditioning outlet or too close to the heating.

2. The yew bonsai can be moved outdoors or on the balcony for two days every half month (it is best to choose cloudy or rainy days), which is more conducive to its natural growth.

3. When the yew bonsai sprouts in spring, there will be some metabolic phenomena (changing leaves, falling leaves).