Why can't we grow camellia at home?
In recent years, the statement that "camellia should not be raised at home" has aroused heated discussion among horticulture enthusiasts. This cognitive bias mainly stems from misunderstanding of camellia ecological habits. As one of the top ten famous traditional flowers in China, Camellia is popular for its elegant flower appearance and long flowering period. This article will systematically analyze the key elements of camellia maintenance and take you out of maintenance misunderstandings. Three major dilemmas in indoor maintenance of camellia: Insufficient light inhibits growth. Camellia is a typical long-day plant that needs to receive 6-8 hours of scattered light every day. The light intensity at the windows of ordinary houses is only 3,000 - 5,000 lux, which is far lower than the standard value of 8,000 - 12,000 lux required for their growth. Long-term exposure to low light will lead to excessive plant growth, increased leaf spacing, and hindered flower bud differentiation. Poor air circulation in confined spaces can easily cause pests and diseases such as red spiders and scale insects. Experimental data show that indoor ventilation is only 1/5 of that in the open environment, which directly leads to weakened leaf transpiration and reduced water absorption capacity of roots, forming a vicious cycle. It is recommended to install an air circulation fan to assist ventilation and maintain a slight air flow of 0.5-1m/s per hour. Difficulty in controlling temperature and humidity. The optimal growth temperature for camellia is 18-25℃, requiring an air humidity of 60-70%. Heating in the north in winter can easily cause excessive temperature differences between day and night, while air-conditioned rooms in summer can cause sudden drops in humidity. Professional tests show that indoor environmental humidity can fluctuate by up to 40%, seriously affecting the development of flower buds. Ecological advantages of balcony planting Three-dimensional viewing scenes The east-south balcony can create a stepped planting frame, taking advantage of the differences in flowering periods of different varieties (early flowering types are October to December, late flowering types are January to March) to achieve a half-year viewing period. It is recommended to combine it with classic varieties such as Yunnan Camellia and Eighteen Bachelor's to build a multi-level landscape. Ecological regulation function An adult camellia plant releases about 1200ml of oxygen per day, and its absorption rate of decoration pollutants such as formaldehyde and benzene reaches 35%. Its wide leaves can effectively block 30% of ultraviolet light, and cooperate with the rattan rose to create a natural sunshade system. Feng Shui culture means that in traditional geomancy, the balcony is the "mouth to absorb the atmosphere", and the "five virtues" characteristics of camellia can reconcile the atmosphere of the house. Red varieties should be placed in the southeast to promote prosperity in Wenchang, and white varieties should be placed in the northwest to enhance the luck of noble people.
Through scientific site selection and refined management, camellia can fully shine in the urban home environment. It is recommended to use a cultivation substrate of clay pots + red jade soil, combined with alum fertilizer and water for regular irrigation. As long as you master the three major factors of "sufficient light, smooth ventilation, and stable humidity", you can enjoy the beautiful scene of "thousands of flowers swallowing fire at the top of the tree" even on the high-rise balcony.