What to do after Brazilian iron trees bloom
To answer netizens 'knowledge of how to deal with green plants and flowers after flowering, the following is a detailed introduction to the scientific conservation guide for Brazilian iron plants after flowering. Brazilian iron plants (scientific name: Dracaena fragrans) have become a popular choice for indoor green plants with its straight and straight plant type and unique striped leaves. When this tropical plant rarely blooms fragrant flowers, targeted maintenance measures are needed to ensure the healthy and continued growth of the plant. The following is a detailed explanation of post-flowering management points from seven aspects: 1. Technical essentials of post-flowering pruning 1. The best pruning time is 7-10 days after flowering, when the flowers naturally wither but have not begun to bear fruit. Use alcohol-disinfected branch scissors, cut obliquely 2-3 cm above the base of the pedicel, and maintain the incision angle of 45° to facilitate wound healing. Pay attention to retaining 2-3 latent bud points in the lower part of the pedicel, which may germinate new lateral branches. 2. Under special circumstances, if mildew spots or pests are found on the flower stalks, it is necessary to immediately cut off and 5 centimeters of healthy parts should be cut down. Apply a special gardening healing agent to the wound in time after pruning to prevent the invasion of germs. 2. The nutrient supply plan is designed to consume a large amount of phosphorus and potassium during the flowering process. It is recommended to apply slow-release fertilizer with a N-P-K ratio of 3-1-2 after flowering, and apply 15-20 grams per pot (diameter 25 cm), evenly spread at the edge of the pot. Combined with foliar fertilizer spraying every two weeks, a mixed solution of potassium dihydrogen phosphate (concentration 0.2%) and iron chelate can effectively prevent yellow leaves. 3. Water management adjustment strategies 1. After flowering, the Brazilian iron tree enters a short dormant period and needs to reduce the watering frequency to 2/3 of the original. Use the "pot weighing method" to judge: water the pot when it feels significantly lighter when you lift the pot. Keep the substrate humidity at 40-50% in summer and 30% in winter. 2. Pay special attention to avoid water accumulation in the leaf core, which is particularly prone to rot due to water accumulation after flowering. It is recommended to use a fine-spout watering pot to slowly fill water along the edge of the basin, and the water temperature should be consistent with room temperature. 4. Optimization of light and temperature and humidity. Plants after flowering need sufficient scattered light. It is recommended to move to the east-facing window sill and receive soft light for 4-6 hours a day. Use a gauze curtain with a shading rate of 30% to filter strong light to prevent leaf burns. It is best to maintain the ambient temperature within the range of 18-28℃, and the air humidity is not less than 50%. In winter, stay away from the radiator more than 2 meters to prevent the leaves from dehydrating. 5. The pest and disease prevention system is susceptible to invasion by scale insects and red spiders after flowering. It is recommended to adopt three-level prevention and control: 1. Physical prevention: Clean the back of the leaves with a soft brush every week. Biological control: Release predatory mites (50-80 per square meter) 3. Chemical intervention: Alternate spraying spirotetramate (diluted 2000 times) and avermectin (diluted 1500 times), with an interval of 10 days. 6. Operation specifications for pot change The spring of the second year after flowering is the best pot change period. Operation points: 1. The diameter of the new basin is 3-5 cm larger than that of the original basin, and the material is preferably breathable pottery basin 2. Substrate formula: peat soil: perlite: leaf soil =5:3:23. Check the root system when changing pots, cut off the black or coiled roots, and keep healthy white root systems. 4. After changing pots, place them in a cool place to slow down the seedlings for 2 weeks without applying fertilizer during this period. 7. Subsequent flower promotion and control techniques 1. Light control: Starting from autumn every year, ensure a dark environment for more than 12 hours a day for 6-8 weeks to induce flower bud differentiation. Temperature difference stimulation: Maintain a temperature difference of 10℃ between day and night in winter (25℃ during the day and 15℃ at night) 3. Nutritional regulation: Increase the application of phosphorus and potassium fertilizers during the flower bud induction period and reduce the amount of nitrogen fertilizer. Special precautions: ·It is normal for a large number of leaf leaves to occur after flowering, which usually lasts for 2-3 weeks. The flowering plants may experience temporary growth stagnation in the next year, so excessive intervention is not necessary. In the south, exposed plants need to prevent water accumulation and root rot in the rainy season. In the north, we need to be vigilant against cold wind blowing causes leaf tips to become charred Through this systematic post-flowering management plan, the Brazilian iron tree can not only quickly regain vitality, but also accumulate energy to create conditions for the next flowering. Recording the changes in plant performance after each flowering and gradually adjusting the maintenance details can cultivate individuals with more ornamental value. It is recommended to use an EC meter to measure the salt content of basin soil every quarter and keep the value within the range of 1.2-1.8mS/cm, which is one of the key indicators for maintaining plant health.
What to do after the Brazilian iron tree blooms shared in this article? I hope it can help you, and I also hope that everyone can come and see more experience and common knowledge on green planting and flowers!