Can lily of the valley bloom many times a year?
As one of the three treasures of the courtyard, lily of the valley can always capture the hearts of gardening enthusiasts with its bell-shaped flowers. However, many flower lovers have misunderstandings about its flowering characteristics and maintenance techniques. This article will deeply analyze the flowering rules of lily of the valley and reveal the six key elements that make lily of the valley bloom. 1. Comprehensive explanation of the flowering cycle of lily of the valley 1.1 Detailed explanation of the annual number of flowering lilies of the valley strictly follow the laws of nature. It only blooms once every year from May to June, and the flowering period of a single plant is about 15-20 days. Its flowering mechanism is closely related to the biological clock of bulbous plants. Although flowering can be delayed by cold storage, it is still essentially a single-flowering plant. 1.2 Flowering extension techniques The flowering period can be extended to 30 days through three measures: ① Maintain a constant temperature of 18-22 ° C during the bud appearing period ② Increase application of phosphorus and potassium liquid fertilizer (1:1000 per week) ③ Cut off residual flowers in time after flowering to reduce nutrient consumption. 2. Six core elements of pop flower maintenance 2.1 The soil ratio plan recommends the use of golden ratio substrate: 5 parts of legular soil +3 parts of perlite +2 parts of deer swamp soil, with a pH value of 5.5-6.5. Adding bone meal (50g/m2) when changing pots in early spring every year can significantly increase the number of flowering. 2.2 The light and shadow control rule follows the "three-period" lighting method: ① The growth period (March to April) scattered light for 4 hours a day ② The bud pregnancy period (April to May) increased to 6 hours ③ The post-flowering recovery period was transferred to a semi-shaded environment 2.3 Water and fertilizer management cycle Establish a precise irrigation plan: keep the substrate moist during the germination period (humidity 60%), control water during the bud stage (humidity 40%), and cooperate with the "three-stage fertilization method": nitrogen fertilizer promotes leaves in March, phosphate fertilizer promotes flowers in April, and potassium fertilizer strengthens roots in May. 2.4 The key node of temperature control needs to experience a low temperature of 4-5℃ vernalization for 40 days in winter, and maintain a temperature difference between day and night of 8-10℃ when spring warms up. In summer, if it exceeds 28℃, the cooling system needs to be started, and the pottery basin method can be used for insulation. 2.5 The disease prevention system focuses on preventing and controlling gray mold: spray Bacillus subtilis (500 times liquid) once a month, and maintain the ventilation rate>0.5m³/min. During the period of high incidence of aphids, yellow sticky insect boards (2 pieces per square meter) are hung. 2.6 The ramet breeding time is ramet in late September every three years, and the survival rate of rhizome segments with 3-4 bud points is the highest. Soaking with 2000-fold indole butyric acid solution after rafting can increase the flowering rate in the next year by 30%.
Mastering these key technical points and cooperating with regular observation and recording, even novices can make lily of the valley bloom every year. It is recommended to establish a maintenance log to record daily temperature, humidity, fertilization frequency and other data, and continuously optimize cultivation plans through comparative analysis.