When does Phalaenopsis bloom?
As a treasure among tropical orchids, Phalaenopsis has become a new favorite of indoor green plants with its elegant flower appearance. Mastering its flowering rules and maintenance skills can allow this "Queen of Lanzhong" to show more lasting ornamental value. Flowering period and control methods of Phalaenopsis natural flowering characteristics Under natural conditions, Phalaenopsis blooms from April to June every year, and a single flowering period can last for 2-3 months. The flower bud differentiation is stimulated by the temperature difference between day and night, and the flowering process requires a low-temperature induction period of about 3 months. Secondary flowering technology After blooming, cut obliquely at the 4-5 nodes at the base of the flower stem. Combined with a constant temperature environment of 18-25℃ and scattered light, secondary flowering can be achieved after 60-90 days. It should be noted that repeated flowering will consume more than 30% of the plant's nutrients. It is recommended to operate only once a year. Nutritional management strategy for flowering period fertilization before flowering is standardized. Potassium dihydrogen phosphate (concentration 0.1%) is applied every 10 days during the bud stage, combined with foliar fertilizer containing calcium and magnesium. Pay attention to controlling the ratio of nitrogen, phosphorus and potassium at 1:3:2 to avoid excessive nitrogen fertilizer leading to bud collapse. Principle of stopping fertilizer at flowering stage reduces the root absorption efficiency by 60% at peak flowering stage. Fertilization at this time may easily cause the EC value to exceed the standard. Experimental data showed that the flower drop rate of fertilized plants was 42% higher than that of the fertilized group. It is recommended to completely stop fertilization after the flower buds are unfolded by 70%. The microenvironment accurately controls the temperature difference between day and night, manages the temperature difference between day and night, and maintains it at 23-25℃ during the day to promote photosynthesis, and drops it to 15-18℃ at night to delay respiratory consumption. Controlling the temperature difference at 8-10℃ can prolong the flowering period by 15-20 days. The moisture control technique adopts the "fingertip detection method": water when the index finger is inserted into the second knuckle of the substrate and there is no moisture sensation. During the flowering period, the air humidity is maintained at 60%-70%, and a humidifier or pebble water tray is used to increase humidity to avoid direct spraying. Special problem handling plan early warning signal of falling flowers When transparent mucus appears at the base of a bud or black pedicel, the root condition should be checked immediately. Data showed that 78% of abnormal flower drops were related to matrix water. The secret to maintaining the color and color is controlled at 12,000 - 15,000 Lux, and the sunshade net is used when the ultraviolet light is too strong. Appropriate supplementation of iron chelate fertilizer can enhance the color saturation of purple varieties.
By scientifically controlling the four major elements of temperature, light, water and fertilizer, the flowering period of Phalaenopsis can be extended to 5 months. It is recommended to change the pot in time after flowering to replenish the bark substrate and use it with slow-release fertilizer to reserve energy for next year's flowering.