Cultivation methods and precautions of yew

Yew is a very special species with rich medicinal value. The cultivation of yew requires certain techniques, so how can we protect our yew? Here are some yew cultivation methods and precautions.

Soil selection for yew

Yew should be planted in early spring in mid-to-late February. Seedlings should be dug up with soil balls and planted in shaded areas of the garden, often with trees. The potting soil should be loose, fertile, acidic soil with high organic matter content. It can be made of garden soil, peat, and sand in a ratio of 2:1:1, plus 1% decomposed organic fertilizer.

Fertilization method for yew cultivation

The yew potted plants should be fertilized with decomposed cake fertilizer water. During the growing season, alum fertilizer water with a concentration of 1:10-15 should be applied every month. The pots should be changed every other year, and solid decomposed organic fertilizer should be added to the bottom of the pots.

In autumn from September to October, base fertilizer can be applied, 50 to 100 kg of decomposed animal manure per plant. In early spring, compound fertilizer containing nitrogen, phosphorus and potassium can be applied, 100 to 200 grams per plant, or 500 grams of superphosphate.

Cultivation methods and precautions of yew

1. Light: Yew likes a cool growing environment, so during the cultivation process, it is necessary to properly shade it and not place it in direct sunlight, which will cause the moisture of the yew to evaporate quickly, resulting in dehydration of the branches and leaves and dry leaves. In midsummer, you can place the yew in the living room, balcony, corner and other places during the day, and then put it on the windowsill for ventilation in the evening. At the same time, the lack of light will also affect the growth of the yew, so in a climate where the sun is not strong, it should be properly exposed to sunlight.

2. Watering: Normal yew leaves are upright and shiny. If you find that the leaves are drooping, you should water them. If the leaves droop, it means that they are seriously lacking water. In addition, you can also judge whether it needs watering by knocking on the pot and listening to the sound. If the sound is very hollow when knocking on the pot, it means that the soil is dry and it is time to water it. Insert your finger 2-3 cm into the soil. If you feel that the soil is dry, you also need to water it. Generally, yew placed outdoors is watered once every 15-20 days, and indoors is watered once every 20-25 days. It is best to keep the moisture content of the soil at around 40%.

Plants need different amounts of water at different times. They need more water during the growing season (March to November) and less water during the dormant season (December to February). In spring and autumn, water the plants every 5 to 7 days, in summer every 3 to 5 days, and in winter every 7 to 10 days. However, it should be noted that yew trees should not be watered with tea water. Excessive watering will cause root rot.

3. Soil: The soil for yew cultivation should be loose, rich in humus, water-retaining, fertilizer-retaining and breathable. You can choose a mixed matrix made of peat soil, perlite and loam. Since clay is not breathable and sandy soil has poor fertilizer and water retention, they are not suitable for use. In addition, the soil should be fertilized in time for yew cultivation. It is better to apply 0.2 kg of organic fertilizer and 0.02 kg of compound fertilizer per plant at a time. Farmyard manure, cake fertilizer (such as cottonseed cake, peanut cake, hemp cake), etc. can also be added. When applying fertilizer, try to sprinkle it along the wall of the pot and not close to the roots of the yew. Generally, the newly purchased yew bonsai has its own nutrient soil. No fertilizer is needed in the first 3 months, and it can be applied after 2 or 3 months.

4. Pest and disease control: Under normal circumstances, there are very few pests in yew cultivation. If you find that yew is withered or has pests and diseases, you can irrigate or spray it with methyl thiophanate or potassium dihydrogen phosphate. Relatively speaking, yew will suffer from root rot, stem rot and root rot in the rainy season, especially young trees. At this time, you can spray dichlorodiphenyltrichloroethane for maintenance. In high temperature and drought seasons, yew is prone to leaf blight and red blight, which can be prevented and controlled by spraying Bordeaux liquid.

5. Precautions for the growing environment: The yew does not have too many requirements for the growing environment. The main thing is that it cannot be exposed to direct sunlight, cannot be blown by air conditioners in summer, cannot be close to heaters in winter, and cannot throw cigarette butts, tea leaves and other debris into the cultivation pot at will, which will have an adverse effect on the growth of the yew. The flower pot for growing yew should be slightly larger, and a few more holes can be made in the lower part of the pot to enhance the water permeability and air permeability of the flower pot.

6. Bonsai pruning: When the lower branches of the yew bonsai grow too densely and the leaves dry and yellow and fall off, you can trim off some of the dense branches at the bottom, and cut them into umbrella, tower, round and other shapes. When repotting the yew, if the root system cannot keep up with the nutrient supply to the roots and branches and leaves, and the leaves curl and dry up, you can reduce the consumption of nutrients by the branches and leaves through pruning, and quickly restore the root growth.

7. Transplantation and repotting of yew: After about a year of cultivation, the new yew will gradually grow and its root system will develop. Therefore, it is necessary to transplant and repot. When repotting, the old pot can be broken, but the original soil ball should not be damaged. After moving it into the new pot, water it in time to make the roots firmly attached to the soil so that the roots of the yew are closely integrated with the soil.

The above is an introduction to the cultivation methods and precautions of yew. I believe everyone already knows how to grow yew!