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The Brazilwood (Dracaena fragrans) is an evergreen tree of the Liliaceae family, with a curved, bow-like shape and glossy bright green leaves. Its flowers are small and inconspicuous but fragrant. It is an indoor foliage plant and has now become a new favorite in the home decor world. So what should you do when Brazilwood leaves turn yellow? Here are methods to deal with yellowing Brazilwood leaves.
The flowers of the Brazilwood are not themselves toxic, but their scent is too strong, so when it blooms it is best to move it outdoors or to a more spacious place. A traditional Chinese medicine can be extracted from the leaf bases, stems and branches of the Brazilwood, which has a hemostatic effect; its Chinese medicine name is Xuejie (dragon's blood). Therefore, it is not toxic.
The Brazilwood is a valuable timber, and in Africa it symbolizes good blessings. The fragrance of the Brazilwood comes from the oil cells in the flowers, which can secrete fragrant aromatic oils. When these aromatic oils diffuse into the air, with the help of our sense of smell, we can enjoy the comfortable wafts of fragrance. In addition, it contains a substance called "glycoside"; during decomposition, glycosides can also release the subtle fragrance that people like. However, no information suggests that the fragrance of the Brazilwood is toxic. Only people with weaker constitutions, or those who have allergic reactions to pollen or floral scents, need to be careful, and it is best to move the flowers out of the living room.
What should you do when Brazilwood leaves turn yellow?
1. Overwatering: if the potting soil stays wet for a long time, it causes a lack of oxygen in the soil, makes some fibrous roots rot, hinders normal respiration and the absorption of water and nutrients, and causes leaves to turn yellow and drop. After being affected, the young leaves first turn pale yellow, and then the old leaves gradually turn yellow as well. Watering should be controlled immediately, fertilization should be paused, and the soil should be loosened frequently to make it well aerated.
2. Drought and dehydration. Missing watering when growing flowers, or watering only halfway for a long time (that is, wet on top and dry below), affects nutrient absorption and also easily causes the leaf color to become dull and lusterless, with leaves wilting and drooping. First the lower old leaves age, and gradually wither and yellow from bottom to top and drop. At this time, a small amount of watering and misting is needed so that they gradually recover, and then normal watering can be resumed.
3. Long-term lack of fertilizer. If nitrogen fertilizer has not been applied for a long time, or the pot and soil have not been changed, the soil lacks nutrients such as nitrogen, resulting in weak branches and leaves and thin, yellow leaves. The pot should be changed in time, replaced with new loose and fertile culture soil, and gradually given more dilute decomposed liquid fertilizer or compound flower fertilizer.
4. Excessive fertilization. If too much fertilizer is applied, the new leaves will be thick and fleshy, and often uneven, while the old leaves will have dry tips, scorched yellow edges and drop. Fertilization should be stopped immediately, the amount of watering should be increased so that the fertilizer flows out from the drainage holes at the bottom of the pot, or the pot should be changed immediately, the soil ball rinsed with water, and then replanted into the pot.
5. Hot, high temperatures. In summer, if flowers that prefer cool conditions (such as Cyclamen, Fuchsia, and Begonia semperflorens) are placed in a high-temperature spot and exposed to direct strong light, it very easily causes the tips and edges of young leaves to scorch, or the leaves to turn yellow and drop. They need to be moved in time to a cool, well-ventilated place.
6. Excessive shading. If sun-loving flowers are kept for a long time in a shaded place or a spot with insufficient light, the branches and leaves will turn yellow.
7. Soil and water on the alkaline side. In most areas of the north, the soil and water contain more salt and alkali. When planting acid-loving flowers, such as rhododendron, camellia, Michelia figo, gardenia, orchid, Michelia alba, and osmanthus, because the soil lacks absorbable elements such as soluble iron, the leaves will gradually turn yellow. When planting, use acidic soil, and during the growing period, frequently water with alum fertilizer water.
8. Too dense and not ventilated. If too much nitrogen fertilizer is applied, the branches and leaves grow too luxuriantly, and if they are not pruned for a long time, the inner branches and leaves do not get enough light, which easily causes leaves to turn yellow and drop. Fertilization should be reasonable and pruning should be strengthened so as to provide ventilation and light.
9. Dry air. When indoor air is too dry, some flowers that like a humid environment, such as spider plant and orchid, often show phenomena such as dry leaf tips or scorched leaf edges. Methods such as misting and covering with plastic film should be used to increase air humidity.
10. Improper temperature. If the indoor temperature in winter is too low, flowers that like high temperatures are often susceptible to cold damage, which causes leaves to turn yellow, and in severe cases they wither, turn yellow and die. If the indoor temperature is too high, the plant's transpiration is excessive, and the roots cannot supply enough water and nutrients, which also makes the leaves turn yellow. Please note that the indoor temperature should be adjusted in time.
11. Soil on the acidic side. Red soil in the south is acidic, and elements such as magnesium are easily lost. When planting trees and flowers that are alkali-tolerant or prefer slightly alkaline soil, such as oleander, boxwood, and winter jasmine, the phenomenon of yellowing between the veins of old leaves often easily appears. Calcium magnesium phosphate fertilizer can be applied, or a magnesium sulfate solution can be sprayed.
12. Damage from pests and diseases. Leaf spot disease caused by infection with fungi and other pathogens easily causes localized necrosis of leaves, with yellow spots or patches appearing, and in severe cases the whole leaf withers, turns yellow and drops. After infection by mosaic virus, yellow-green mottled patches appear on the leaves. When harmed by scale insects, red spiders and others, the leaves also become locally yellow and withered, and even the whole leaf wilts, turns yellow and drops. In all cases, pesticides should be sprayed in time for control.
13. Strong stimulation. When preventing and controlling pests and diseases, using pesticide at too high a concentration, or being polluted by toxic gases in the air, or suddenly watering with cold water when the temperature is high, all easily cause the leaf tips or parts of the leaf surface to turn yellow and scorch, and even the whole plant to wither and die. Therefore, pesticides should be used reasonably, and efforts should be made to eliminate sources of air pollution. In midsummer, avoid watering flowers with cold water around noon. Finally, it should also be mentioned that yellow leaves on potted flowers are sometimes caused by one reason, but are often the result of multiple factors. A correct diagnosis should be made so that the right remedy can be applied.
That is all of "What should you do when Brazilwood leaves turn yellow?" I believe everyone will have a basic understanding of whether Brazilwood flowers are toxic after reading this article. If you want to learn more about decoration consultation, please click to enter the decoration knowledge channel.
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