How to grow potted yew? Detailed guide to cultivation methods and precautions
The yew may not look very beautiful, but it does release oxygen and purifies indoor air, making it an essential flowering plant for the home. What are the cultivation methods for yew? What problems should be noted when growing yew? Below, the editor of Qiannong Network will introduce the cultivation methods and precautions for yew!
Cultivation methods for yew
1. Climate environment for cultivation: The most important thing is that the climate must be suitable. Yew grows in subtropical and tropical regions, and the climate must be humid and rainy year-round. Of course, this is also related to the variety, except for the Northeast yew.
2. Daily care
① Watering: It likes moisture but cannot tolerate waterlogging. Mist the leaf surface frequently. Do not water if the potting soil is not dry; when watering, water thoroughly.
② Fertilizing: Apply fertilizer frequently and lightly. The yew's growing season is from March to October each year, and its dormant period is from November to February. For fertilizing, in early March to April apply a top dressing of rapeseed cake, which is nitrogen fertilizer, then apply diluted fermented rapeseed cake liquid once about every 20 days, and this will meet the needs of the growing season.
③ Pruning and shaping: Begin pruning every year in February. During the growing season, it is best not to touch it.
3. Only yew at the seedling stage is a shade plant (it remains at the seedling stage for three years after germination). After three years, the yew is no longer a shade plant and should gradually be exposed to sunlight. At maturity, it should receive direct full sunlight, otherwise it will also fail. Many households place yews older than 3 years indoors, which leads to poor growth due to lack of light and eventually death.
4. Pests and diseases are managed in the same ordinary way as other flowering plants. Spray diluted Bordeaux mixture several times before the plum rain season. If there are insects, use diluted dimethoate.
Care of yew bonsai
1. For newly purchased yew bonsai, when new buds have just sprouted, try not to spray fertilizer solution on the leaf surface, because at this time the yew bonsai has not truly established itself or the leaves are too tender. If fertilized at this time, the tender leaves or tender buds will shrivel and curl. This will affect the normal sprouting of new roots. Do not spray too much clear water on the leaf surface; the standard is that water droplets can be seen on the leaf surface but do not drip down. Spray in the afternoon two hours before dark. At night, no water droplets should remain (especially not when the amount is larger), otherwise it will affect the normal growth of tender leaves or cause the leaves to turn yellow, affecting the plant's healthy growth. (Spray slightly more on the underside of the leaves than on the upper side, because the upper surface of the leaves has a waxy protective film that hinders the absorption of nutrients and water, while the underside has no waxy layer and more stomata, so its ability to absorb water and fertilizer is stronger. Therefore, the underside absorbs faster and more than the leaf surface.) Depending on the situation and temperature, do this once a day or two to three times a day. Note that indoor areas need frequent ventilation.
2. For newly purchased yew bonsai, because transplanting from the growing base into a pot damages part of the root system, this causes an imbalance in nutrient supply between the roots and the branches and leaves. Especially for those bonsai with luxuriant branches and leaves, the transpiration on the leaf surface is greater than the absorption by the root system. When the potting soil remains moist, the terminal leaves may curl and dry up. At this time, it is best to properly prune the branches and leaves to reduce excessive consumption of water and nutrients by the branches and leaves and to help the root system recover growth as soon as possible. At the same time, control watering and keep the potting soil slightly dry to help the root hairs grow as quickly as possible and speed up the restoration of normal nutrient supply. At the same time, yew has a strong sprouting ability, especially strong growth capacity of new branches, and is very tolerant of pruning. After surviving, it will soon sprout new branches and new leaves. When necessary, plant rooting or root-promoting agents can be used to water the potting soil about once every seven days, for three to four consecutive times (use a higher-quality product and do not use too much water at the same time), so that the root system can grow quickly and healthily. This will restore the supply balance between roots and leaves as soon as possible and make the yew grow well.
3. Because the nutrients in a yew bonsai planted in a pot are limited and can only provide about half a year of growth needs, or the current plant shape is relatively large and consumes a great deal of nutrients, it is recommended that consumers replace the original pot as soon as possible after purchase. Because our company gives the bonsai a repotting recovery period of more than one month, and it is stored for a period of time at the distributor as well, and moreover yew likes fertile, loose soil. It is best to repot as soon as possible. When repotting, calculate by the inner diameter of the flower pot; the inner diameter of the new pot should be at least 5 cm larger. Do this before new buds sprout in February or March each year. When the potting soil is neither dry nor wet, tip the tree and potting soil out together. Try not to break the original soil ball. If after survival the root system is found to be too abundant, the bad roots can be properly trimmed off. Place the tree into the new pot, fill nutrient soil around it, and press it lightly and firmly. Only when the soil in the pot is in close contact with the roots can the survival rate be improved; otherwise the plant is not easy to survive or does not grow vigorously. But do not press the soil too firmly either. If it is too firm, the roots cannot breathe air, which will lead to root rot and plant death. After planting, immediately water thoroughly once. Place the pot in a cool place for a few days. After watering, the potting soil should not be turned or pressed again, otherwise the potting soil will easily become compacted, or the soil will be too firm and poorly ventilated, easily causing root rot.
4. Fertilizing methods for yew bonsai: The three major elements of plant growth are nitrogen, phosphorus, and potassium fertilizers. Nitrogen fertilizer can promote the growth of branches, leaves, and flowers; phosphorus fertilizer can promote the formation of flowers and fruits; potassium fertilizer can promote the growth of stems and roots. Because bonsai are cultivated in limited pot space and limited cultivation soil, organic matter is decomposed by bacteria into inorganic salts and absorbed by the roots. As the yew grows and consumes nutrients, the nutrients in the potting soil gradually become insufficient, resulting in an inadequate supply for growth needs. Although prepared nutrient soil is used in the bonsai, do not fertilize within three months after purchase. Just water with about a 1000-fold potassium dihydrogen phosphate solution in the evening every seven to ten days, or spray it on the leaf surface. Control the amount of watering well and do not water too much. Only when the leaf color becomes lighter, the plant becomes thin and weak, the leaves appear yellow-white, and "dry-burnt edges" appear at the leaf margins and leaf tips, and the leaves prematurely age and fall, apply a 1000-fold urea solution or an 800-fold quick-dissolving high-quality compound fertilizer solution of potassium sulfate to the potting soil after removing sediment, once about every month. It is best to use fully decomposed diluted soybean cake fertilizer water (about 10%-15%), applying it away from the trunk and as much as possible along the pot wall, once every half month. On the second day after fertilizing, water once more with clear water to dilute it in case the fertilizer applied was too concentrated. The above two fertilizers can be used alternately, or two small holes can be dug in each pot and five or six granules of urea and seven or eight granules of high-quality compound fertilizer placed inside. Then cover with soil and water so the fertilizer dissolves. Yew bonsai should avoid raw fertilizer and concentrated fertilizer. Top dressing should mainly be nitrogen and phosphorus fertilizer and must not be too concentrated.
5. Watering methods for bonsai: The principle is "do not water if not dry; when watering, water thoroughly."
Water is an important component of the bodies of flowers and trees. All life activities of flowers and trees are carried out with the participation of water. Whether photosynthesis or transpiration, none can do without water. Water can maintain the turgor pressure of cells and keep branches and leaves upright. But exceeding the limit will instead make the plant grow thin and weak. If there is too much water in the potting soil for a long time, it will cause the leaves to turn yellow, leaf drop, root rot, and even death.
① When the color of the surface of the potting soil has slightly become lighter, the leaves are slightly curled, pressing the potting soil with a finger feels somewhat soft and loose, and tapping the upper middle part of the pot body lightly with a finger joint gives a relatively dull sound, the potting soil does not need watering; just mist the leaf surface to supplement the leaves' moisture. When the soil surface turns white, pressing with a finger feels relatively hard, a crack appears between the pot and the soil, tapping the upper middle part of the pot body lightly with a finger joint gives a crisp "bang bang" sound, and the young shoots and young leaves are wilting, the potting soil should be watered. Before watering, the crack between the soil and the pot should be pressed firm with a hard object, then water. Use a large ladle to water; when pouring, the ladle should be close to the pot rim, pour the water in at once, and water thoroughly in one go, so that the potting soil absorbs enough water. If a small amount of water is poured into the pot and after a while water is seen quickly flowing out from the bottom of the pot, this indicates that the soil and the pot are not completely pressed firm, and an object should be used to press tight the gap between the pot wall and the soil before watering. When the potting soil structure is normal, after watering it is better if water slowly seeps out from the bottom of the pot in about 40 seconds to one minute. The water temperature for watering must be close to or consistent with the temperature at the time. When using tap water for watering, first place the water in sunlight for about three hours before watering, because light helps decompose oxides in tap water and can raise the water temperature. The water can also be placed in a large basin for half a day or a night before watering. If there are many bonsai, it is best to put the water in a large vat so that the water temperature is as close as possible to the air temperature and soil temperature. Especially in hot seasons, in addition to watering the potting soil, also spray water mist on the leaf surface to keep the leaves moist, which is beneficial to growth. The potting soil can be kept slightly dry and must not be too wet. When there are many pots, be sure to check each pot according to the actual situation, and take care not to miss watering or overwater.
② Yew leaves remain green all year round and are suitable for indoor placement. However, yew bonsai should not be placed at the air outlet of an air conditioner, otherwise the water evaporation from yew leaves will increase, easily causing the yew branches and leaves to dehydrate rapidly, resulting in curled and dried leaves. If placed in an air-conditioned room and the air conditioner is turned on every day, spray the leaf surface every day to maintain leaf humidity, and place a basin of clear water indoors. If in a heated room in the winter in the north, it should be kept away from the radiator, and a basin of clear water should be placed on the radiator to increase indoor air humidity. In summer and autumn, when the temperature exceeds 30°C, shading and cooling should be strengthened, and it can be moved to a ventilated room facing north. When necessary, spray water to lower the temperature, creating a cool and humid environment to benefit the growth of yew. Also avoid rooms where direct afternoon sun from the west shines directly on the yew bonsai. In winter, control the amount of watering for the bonsai and avoid the potting soil being too wet for a long time. Because in winter the plant grows less vigorously and the leaves release less water, if the potting soil is too wet for a long time, the surface of the potting soil will become compacted and impermeable, easily causing root rot. When growing yew indoors, be sure to pay attention to frequent indoor ventilation.
③ The soil for planting yew should preferably be loose, rich in humus, fertile, and slightly acidic soil (pH = 5.5-7). Do not pour tea water into the yew bonsai. If leftover tea water is often poured in, because tea contains theophylline and other plant alkalies, it will first change the soil pH, and will also have a relatively destructive effect on the organic nutrient content in the soil. It inhibits the growth of yew and also causes excessive soil moisture, hindering ventilation of the potting soil and causing root rot and stem rot. If conditions permit, about once a week, move the yew bonsai to the balcony at night to receive dew, and in the morning place it in sunlight for about one to two hours to receive light (before ten o'clock in the morning), which is beneficial to yew growth and improves disease resistance. In summer and autumn, prevent direct afternoon sun from the west from shining through the window directly onto the yew, to prevent high temperatures from scorching the leaves and affecting ornamental value.
III. Precautions for growing yew
1. Because the yew tree is small, pay attention to regulating light. It needs light but should not be placed in strong light for too long. Generally, in summer and autumn, about two hours of sunlight before ten in the morning or after five in the afternoon is sufficient. At ordinary times, receive more scattered sunlight. Otherwise, strong light will scorch the leaves and cause the leaf tips to become scorched yellow. Also maintain indoor ventilation, so that the plant will not suffer poor growth phenomena such as wilting and drooping due to indoor air being too dry.
2. If a new bonsai shows tender leaves that are dull yellow and lusterless, and the growing point of the new shoot wilts, this is generally caused by watering too frequently and too much, compacted and impermeable soil, and rot of part of the root hairs, weakening the ability to absorb water and fertilizer. For mild symptoms, control the amount of watering, use a hard and blunt object to gently loosen the surface soil of the pot so that the potting soil can breathe, move it at night to a place where it can receive dew, and move it to a shady and cool place at eight or nine in the morning, which is helpful for the healthy recovery and growth of the root system. If within a short period the leaves yellow and curl, this indicates severe root rot. Immediately turn out the pot to inspect the root rot condition (normal fibrous roots are tender, plump, and white in shape). If more than half are affected, it generally cannot be saved.
3. If old leaves turn yellow from the bottom upward, but new leaves generally grow normally, this is generally caused by not watering thoroughly in one go and applying too little water, resulting in root water shortage. Sometimes the terminal leaves dry up and curl, and dry leaves fall off at a touch, but the old leaves grow normally; this is generally also caused by root water shortage, and a thorough watering should be given in one go. When watering, be sure to first press firm the cracks at the pot rim with an object to prevent water from quickly leaking out through the cracks after watering. This creates the false appearance of thorough watering, and over time the root system will die from water shortage, causing the trunk to die. At night, move it outdoors to receive more rain and dew, and receive two hours of sunlight in the morning and evening to help the yew recover its growth.
4. Yew is suitable for weakly acidic soil. If alkaline water is used for irrigation for a long time, it will cause the leaves to turn from green to yellow, and even cause leaf drop. Therefore, add acidic nutrients or spray the leaves or water the potting soil with a 0.2% ferrous sulfate solution, once every ten days, for three consecutive times. This can make leaves yellowed by alkalinity turn green again.
5. Every year in March and April, yew will sprout a large number of tender buds, which will consume a large amount of nutrients. At this time, the tender buds growing toward the inside can be removed to prevent the branch shape from being too dense and poorly ventilated, which would cause the leaves to turn yellow or fall. Thin out crossing branches, inward-facing branches, and leggy branches, which can improve ventilation and light penetration and can also save excessive consumption of water and nutrients. When the tender buds have just sprouted, it is best not to spray liquid fertilizer on the leaf surface, or apply concentrated fertilizer at the roots.
6. For normal fertilization amount, if urea is used alone as a top dressing for nitrogen fertilizer, the concentration is generally 0.1%; if potassium dihydrogen phosphate is used alone as a top dressing for phosphorus fertilizer, the concentration used is 0.1% to 0.2%; the interval between top dressings is seven to ten days.
Cultivation methods for yew bonsai and precautions for growing potted yew
Many people like the beautiful yew bonsai, but when growing it at home, they always fail. So some flower enthusiasts especially want to learn the cultivation methods for yew bonsai. Today I will meet everyone's needs and write out the cultivation methods for yew bonsai to share with everyone.
Cultivation methods for yew bonsai1. The living environment of yew
Yew is a distinctive plant that likes a cool environment. It cannot be placed where sunlight shines directly. It should be placed in places such as the living room and bedroom that are not exposed to direct sunlight. In the evening when the sunlight is not strong, the potted yew can be moved to the windowsill to let it get some air.
2. Water supply for yew
Yew has relatively high requirements for water; too much or too little are both bad, and in different time periods, its watering frequency is also different. The main principle for watering yew is not to water if not dry, and when watering, water thoroughly. In spring each year it is in its peak growing season, and it should be watered once every five to seven days. In summer evaporation is severe, and the interval between waterings should be shortened to three to five days. In winter its water requirement is relatively low, and watering once every ten days is enough.
3. Precautions for growing potted yew
When growing yew, pay attention to the occurrence of diseases. If yellowing or disease occurs, spray some thiophanate-methyl. Before spraying, the medicine needs to be diluted with clear water. In addition, when growing potted yew at ordinary times, keep it away from air conditioning in summer, keep it a little farther from heating in winter, and at ordinary times do not casually throw items such as cigarette butts or tea leaves into the flower pot.
Cultivation methods and precautions for potted yew
Potted yew is an ornamental plant that many people like to grow at home. It has a graceful tree shape and emerald-green leaves, and its ornamental value is especially high. This plant is known as a national treasure in the plant kingdom and belongs to the national first-class protected plants. To make it into a potted plant and grow it at home, you need to understand its cultivation methods in advance and know what to pay attention to when growing potted yew.
Cultivation methods for potted yew1. Preparation of potting soil
For growing potted yew, the preparation of potting soil is very important. It likes slightly acidic soil that is loose and high in organic matter, and the soil should have strong water and fertilizer retention and also relatively good permeability. It is best to choose materials such as garden soil, peat, and river sand to prepare the potting soil yourself, and apply enough base fertilizer before planting.
2. Growing environment
The yew plant likes a warm and humid environment, and it is a strongly shade-tolerant slow-growing tree species. At ordinary times, when it is made into a potted plant and grown at home, it can be placed indoors away from strong light, and when the outside temperature is between 20 and 30 degrees, it grows fastest. Its low-temperature tolerance is relatively poor, and in winter it should be placed in an environment above ten degrees.
Precautions for cultivation1. Fertilizer selection
When growing potted yew, fertilizing is often needed because it is a fertilizer-loving plant, but everyone must pay extra attention when choosing fertilizer for yew. During its peak growing season, diluted cake fertilizer water should be applied. After entering autumn, a base fertilizer can be used once, and the fertilizer can be livestock manure. In spring, yew needs sufficient nitrogen, phosphorus, and potassium fertilizers, and at the same time sufficient calcium phosphate should also be supplemented.
2. Water control
To grow potted yew well, water control is very important. Although the yew plant likes a humid environment, it is afraid of waterlogging. During ordinary cultivation, watering once every 2 to 3 days is enough. In summer, during high-temperature weather, water once every morning. After entering autumn, the weather turns cooler, yew growth slows down, and its water needs become smaller, so at this time it can be watered once every 4 to 5 days. And when watering, be sure not to let water accumulate in the flower pot, otherwise the roots of the yew will rot, and in severe cases the yew will die.