Why did gardenia flower buds fall off
Whenever gardenia blooms, many flower friends always find that the plant has buds falling off. As a typical aromatic shrub, gardenia has strict requirements on the growth environment, and the falling of the bud often reflects omissions in the maintenance process. This article will analyze the reasons from three key dimensions and provide actionable solutions. 1. Improper environmental control causes buds to fall 1.1 Strong light burns flower buds Although gardenia likes light, they should not be exposed to the sun. Direct light lasting for more than 6 hours will cause the leaves to curl and brown spots appear on the base of the bud. It is recommended to use a double-layered sunshade net to control the light intensity between 30,000 - 50,000 lux. Full light can be accepted in the morning and shaded at noon. 1.2 Air humidity fluctuations require a relative humidity of 60%-75% during the bud development period. Atomizing humidifiers can be used in dry areas in the north, spraying once a day in the morning and evening, paying attention to avoid direct contact between water droplets and flower buds. In the rainy season of plum blossoms in the south, ventilation needs to be strengthened to prevent excessive humidity from causing mildew. 2. Mistakes in water and fertilizer management lead to bud fall 2.1 Planting roots with stagnant water and rotten roots in pottery pots can improve air permeability. The recommended substrate ratio is 3:1. Watering follows the principle of "seeing dry, seeing wet". Insert bamboo sticks to test soil moisture, and then pour water thoroughly when the surface layer is 2 cm dry. If water occurs, remove the pots and dry the roots immediately, prune the rotten roots and replace the soil with new soil. 2.2 The imbalance of nutrient supply requires phosphorus and potassium fertilizers mainly during the bud period. It is recommended to use potassium dihydrogen phosphate (concentration 0.2%) to spray the leaves every 10 days. At the same time, trace elements can be supplemented, and slow-release fertilizers containing iron and magnesium can be applied monthly. Pay attention to avoid excessive nitrogen fertilizer, otherwise it will stimulate the branches and leaves to grow and consume nutrients. 3. Physiological bud fall prevention strategies Maintaining the temperature difference between day and night of 8-10℃ is conducive to flower bud differentiation, and the night temperature should not exceed 25℃. Regularly check the soil pH and maintain it within the weak acid range of 5.5-6.5. Avoid moving the flowerpot after the bud is formed. Environmental changes can easily cause stressful buds to fall.
Through the three major measures of precise regulation of light, scientific water and fertilizer management, and maintaining a stable growth environment, the rate of gardenia can be effectively reduced by more than 80%. It is recommended that flower lovers establish a maintenance log to record changes in temperature and humidity and fertilization cycles, and gradually grasp the growth laws of gardenia.