How to raise newly purchased primroses
As the star flower on the window sill in winter, primroses have become the darling of home decoration with their colorful colors. Newly purchased plants often wilted due to sudden changes in the environment. Mastering scientific maintenance methods can keep delicate flowers blooming for 3-4 months. This article will systematically analyze five key maintenance dimensions to help you create a microenvironment suitable for the growth of primroses. Analysis of core maintenance elements: If the original basin soil of cultivation substrate is hardened and hardened, it needs to be replaced immediately. It is recommended to use a gold ratio of humus soil: garden soil: river sand =5:3:2, and add 10g of decomposed sheep dung per liter of substrate as base fertilizer. Pay special attention to maintaining a slightly acidic environment with a pH value of 5.5-6.5, and regularly water a 500-fold diluted ferrous sulfate solution to adjust the pH value. Light and temperature environment regulation Primroses have typical short sunshine characteristics. In spring and autumn, scattered light needs to be ensured for 4-6 hours a day, and in winter, it can be extended to 8 hours. Temperature management follows the "15℃ golden line". In summer, the temperature is reduced to below 28℃ through sunshade nets, and in winter, the overwintering temperature is maintained at 8-12℃. Remember to avoid the temperature difference between day and night exceeding 10℃. The moisture management technique adopts the "dipping basin + spray" dual-track water replenishing method: dipping the basin once a week (the water level reaches 1/3 of the basin height), combined with foliar spraying every morning and evening. The humidity of the substrate is maintained at about 60%, which can be detected by the bamboo stick insertion method-the absence of clay is a signal of water shortage. Pay special attention to reducing the frequency of spraying during the bud period to prevent petals from becoming mouldy. The nutrient supply plan starts the fertilization procedure after 10 days of seedling suspension: apply a balanced fertilizer of 20-20 -20-20 nitrogen, phosphorus and potassium (1500 times liquid) every 7 days during the growth period, and use high-phosphorus potassium fertilizer (10-30-20) during the budding period. It is recommended to combine biological stimulants such as seaweed essence and spray them on the leaves once a month to enhance stress resistance. The pest and disease control system focuses on preventing and controlling damping-off during the seedling stage, and mixes Bacillus subtilis at a ratio of 1:1000 during substrate pretreatment. When leaf spot disease is discovered, the affected leaves are immediately removed and 800 times of mancozeb solution is sprayed. Matrine biopesticide is recommended for aphid control, which is sprayed once every 10 days and can be eradicated three consecutive times.
Through systematic maintenance and management, newly purchased primroses can not only adapt smoothly to the new environment, but also extend the flowering period by more than 30%. Remember the two key actions of pruning residual flowers in time and maintaining good ventilation, and you will harvest a flower waterfall landscape that continues to bloom. It is recommended to establish a maintenance log to record temperature and humidity changes and plant responses, and gradually form a personalized maintenance plan.