How do colored calla lilies spend the winter?
As a much-loved ornamental plant, colored calla lilies attract many flower friends with their colorful Buddha spaths. However, due to its tropical plant nature, winter conservation has become a critical period for cultivation. This article will systematically analyze the four core elements of overwintering management of colored calla lilies to help you achieve the cultivation goal of "cultivating in winter and blooming in spring." Temperature control: The first factor for the winter of colored calla lilies is 15℃ critical temperature control. When the ambient temperature is lower than 15℃, the colored calla lilies will start their hibernation mechanism. At this time, they should be moved into a heating room or built an insulation shed. It is recommended to use a combination of double glazing windows + thick curtains for insulation, and night temperature fluctuations need to be controlled within ±3℃. The upper limit of growth temperature of 25℃ In the winter heating environment, attention should be paid to the temperature not exceeding 25℃, which can be adjusted by regularly opening windows for ventilation. It is recommended to open windows for 2 hours from 10:00 to 14:00 every day to maintain air circulation and avoid cold wind blowing directly on the plants. Environmental management: Humidity and light coordinated control 60% humidity maintenance plan uses ultrasonic humidifier and hygrometer for precise control, or uses the "basin + pebble tray method": lay 3 cm thick pebbles in a 30-cm diameter tray, and inject water until the pebbles are submerged 1/2, place the flower pot on it. Light intensity gradient adjustment The south-facing window sill needs to maintain direct light for more than 4 hours, and use an illuminance meter to monitor the light intensity and maintain it at 8000-12000lux. Full-spectrum plant fill light should be used to supplement light in rainy and rainy days, and the daily fill light duration should not exceed 6 hours. Key to survival in winter: Experimental data from systematic maintenance plans show that the survival rate of potted plants implemented systematic maintenance reaches 92%, while the freezing rate under extensive management is as high as 78%. It is recommended to establish a maintenance log to record temperature, humidity, light and other data every day to form a personalized maintenance plan.
Through the three core measures of precise temperature control, scientific humidity management, and reasonable light adjustment, as well as regular pest and insect inspections, the colored calla lilies can not only survive the winter safely, but also achieve the ornamental effect of blooming during the Spring Festival. It is recommended to apply liquid fertilizer with high phosphorus and potassium content (diluted to 1/2 of the standard concentration) once every two weeks to reserve sufficient nutrients for spring flowering.