Cultivation methods and characteristics of Poinsettia
The editor provides netizens with knowledge about the cultivation methods and characteristics of Poinsettia, as well as tips for maintaining this plant. Next, let's introduce.
Poinsettia, also known as Christmas flower, is named for its bright red color that enhances the Christmas atmosphere. Poinsettia is a particularly beautiful and festive flowering plant that many people want to grow. Let's understand the cultivation methods and precautions for Poinsettia.
1. Nutrition*
Poinsettia prefers loose, well-drained soil. You can use 3 parts of garden soil, 3 parts of humus, 3 parts of decomposed leaf mold, and 1 part of decomposed cake fertilizer, mixed with a small amount of炉渣.
2. Watering
Spring and autumn are the peak growth periods for Poinsettia. During these seasons, the pot should not be too dry or lack water, and it's best to keep it slightly moist but not waterlogged. In the hot summer, water evaporates quickly, so it's important to water only when the soil feels dry to the touch. Overwatering can lead to root rot and yellow leaves. If yellow leaves appear, move the pot to a well-ventilated area and frequently loosen the soil to increase aeration and prevent root rot.
3. Fertilizing
Poinsettia enjoys fertilizer. When lacking nutrients, the plant may become weak and reduce leaf growth. During the growing season, it should be fertilized regularly to supplement nutrients. You can apply a thin fertilizer once or twice a month, such as a small amount of nitrogen, phosphorus, and potassium compound fertilizer, which can promote vigorous plant growth. In autumn, to encourage earlier flowering, you can add more phosphorus and potassium, such as using a 1:1000 phosphorus potassium solution to spray on the leaves, which can promote flower bud differentiation and flowering.
4. Pruning and Pinching
In the spring, when Poinsettia is growing vigorously, pinch the tips to encourage more branching and increase the number of flowers. Regular pruning and shaping are also necessary to remove withered and diseased leaves, increasing ventilation and light between plants. After autumn, avoid extensive pruning, and wait until the flowering season is over to prune the残花 and supplement nutrients.
5. Temperature and Light
Poinsettia enjoys warmth and dislikes cold. Therefore, it can be moved indoors by the end of September each year, and ensure good ventilation. Poinsettia is a plant that loves sunlight and has strong phototropism. Therefore, it should receive ample sunlight throughout the year. To提前 or delay flowering, you can control sunlight exposure, generally providing 8 to 9 hours of sunlight per day, and it will bloom in 40 days.
6. Pest and Disease Control
Common pests for Poinsettia include whitefly, which can be controlled by spraying or watering with insecticides. Using the phototactic nature of whiteflies, placing yellow sticky traps coated with oil in greenhouses can attract and kill them. It's also important to note that whiteflies usually feed on the underside of young leaves and lighter-colored leaves are more susceptible to their damage.
Some people believe that Poinsettia is toxic, and the white sap in the stems and leaves can irritate the skin, causing redness and swelling, and may trigger allergic reactions. If the stems and leaves are ingested, it can cause vomiting, abdominal pain, and even the risk of death from poisoning. However, it has been proven that Poinsettia is non-toxic, so everyone can purchase it without concern.
The above introduction to the cultivation methods and characteristics of Poinsettia and the tips for maintaining the plant are complete. I hope it can help you, and at the same time, I hope everyone comes to see more green plant and flower experience and knowledge!