The reason why lilies do not bloom
Lily is a perennial bulbous flower, and its non-flowering phenomenon often confuses growers. This article focuses on four core elements such as ball quality and environmental control, systematically analyzes the underlying reasons for blocked flower bud differentiation, and provides highly operable solutions to help you reproduce the elegant flower appearance of lily. 1. Seed bulb development problems 1.1 Seed bulb specifications are not up to standard. Seeds with a diameter of less than 3 cm cannot support flower bud differentiation due to insufficient nutrient reserves. It is recommended to use mature bulbs that have been cultivated for 3 years, with full scales and milky white and developed root systems at the bottom. 1.2 Improper handling of the seeds, newly purchased seeds need to be soaked and disinfected with carbendazim. After drying, they need to be stored at 5℃ for 2 weeks to activate vitality. When planting, the bud point faces upwards, and the soil depth is twice the ball diameter. 2. Mistakes in light management 2.1 Lilians with disordered photoperiod need 6-8 hours of direct light every day, especially the oriental lily line is sensitive to light. It is recommended to set up reflective plates to enhance the light intensity and maintain 20,000 - 30,000 lux. 2.2 Excessive shading can be protected by 30% sunshade net during 10-15 hours in summer, and maintained under full sunshine in other seasons. Pay attention to rotating the flowerpot regularly to ensure uniform light reception. 3. Improper temperature control 3.1 Insufficiently vernalized seeds need to be refrigerated in an environment of 2-5 ° C for more than 45 days. Refrigerator refrigeration can be used: wrap the seeds with moist vermiculite, and regularly check the humidity to prevent mildew. 3.2 Insufficient temperature difference between day and night during the growth period, maintaining a temperature difference environment of 18-25℃ during the day/12-15℃ at night can stimulate flower bud differentiation. Natural temperature differences can be achieved by opening windows in the morning and evening for ventilation. 4. Imbalance of water and fertilizer management 4.1 Irrigation methods improperly adopt the principle of "seeing dry, seeing wet", and irrigating water when 2cm of topsoil is dry. Potassium dihydrogen phosphate (1:1000) is applied every week during the budding period to promote bud development. 4.2 Avoid using high-nitrogen fertilizers in excess. It is recommended to use slow-release fertilizers with N-P-K=5-10-10, and apply 50g per square meter as base fertilizer.
By systematically regulating the four major elements of bulb quality, light, warm water and fertilizer, and regularly checking plant status, the problem of lily not blooming can be effectively solved. It is recommended to establish a maintenance log to record key data such as temperature changes and fertilization cycles, and gradually grasp the personalized maintenance points of different lily varieties.