Many Reasons for Yellow Leaves in Potted Flowers
Article Guide: Introduction to the knowledge of growing flowers at home, many reasons for yellow leaves in potted flowers, the specific contents are as follows:
Potted flowers are prone to yellowing due to limited cultivation conditions and improper daily management. This can affect normal growth and, in severe cases, cause the entire plant to wither. Therefore, it is important to observe and correctly judge the causes of yellowing leaves and take appropriate measures to correct them promptly.
Overwatering: Long-term wetness in the potting soil caused by excessive watering can lead to root asphyxiation and rot, preventing normal absorption of water and nutrients, resulting in yellowing and even falling leaves. When yellowing leaves are found, stop watering immediately, loosen the potting soil, and place it in a well-ventilated and dry area to speed up evaporation. Watering should adhere to the principle of "water when dry, and water thoroughly when watering," and avoid scattered watering. Moreover, avoid spraying water on the flowers during the blooming period.
Water Deficiency: If leaves droop due to lack of water, immediately spray water on the leaves to speed up the plant's absorption of water, then water the pot. Be careful to water sparingly, just enough to keep the soil moist, and avoid overwatering.
Improper Fertilization: During the growth period of potted flowers, long-term lack of fertilization or insufficient fertilization can cause yellowing. Excessive application of concentrated fertilizer can burn the roots, affecting water absorption and also causing yellowing. More watering can dilute and wash away the nutrients in the soil. Lack of fertilizer can lead to compacted soil, yellow, thin, and weak leaves, and thin, yellow, and tender branches. Fertilization should be applied immediately.
High Alkalinity: Due to long-term watering of potted flowers, salt and alkali accumulate in the potting soil, which can cause yellowing and falling of leaves. Replace the soil or spray sulfuric iron solution on the leaves, or apply alum fertilizer and fermented rice washing water, all of which can yield good results, but avoid overapplication.
Air Dryness: Some flowers that prefer humid air, such as camellias and orchids, often have dried leaf tips, scorched leaf edges, or leaf spots, and curled brown edges when the air is too dry, especially in areas with coal fire or heating in winter. In such cases, it is advisable to frequently spray the branches and leaves with water at room temperature to increase humidity.
Large Flowers in Small Pots: Large flowers with extensive root systems require more water and fertilizer, which small pots cannot meet. This results in old leaves becoming dry and yellow without luster, and young leaves becoming yellow and thin. Change to a pot of appropriate size, and add 30% humus soil to the soil to allow the flower to grow normally.
Excessive Density of Branches and Leaves: Thick growth of branches and leaves combined with long-term lack of pruning can lead to insufficient light in the inner branches, causing yellowing and falling leaves. Pruning the inner branches should be strengthened to facilitate ventilation and fertilization should be applied appropriately.
Insufficient Light: If flowers that prefer sunlight, such as roses and pomegranates, are placed in areas with weak light for a long time, the plants will gradually weaken, leaves will become thin and yellow, and they will not bloom or bloom less. They should be moved to areas with sufficient light.
Freezing Damage: Flowers that turn yellow due to freezing should be moved indoors to keep warm and strengthen the cold resistance training of potted flowers in advance.
Disease and Pest Infestation: Leaves infected with the mosaic virus often show yellow-green patterns. Prevention and timely spraying of pesticides, along with adequate light and ventilation, are necessary. Aphids and spider mites extract nutrients and moisture from the undersides of leaves, causing yellowing and even the entire plant's leaves to wither and fall off. Timely pest control can restore the plant.
Others: Poisonous gases damaging flowers, and the use of high-concentration pesticides to control pests and diseases can cause yellowing or browning of the leaf tips or局部 areas, and even the death of the entire plant. Therefore, it is important to eliminate sources of air pollution or plant pollution-resistant plants and use pesticides rationally.
The above content introduces the reasons for yellow leaves in potted flowers in full. I hope it helps you, and I also hope everyone comes to see more green plant and flower experience and common sense!