Camellia Care Techniques: A Complete Guide to Camellia Cultivation

How to care for camelliasAs one of the top ten famous flowers in traditional Chinese culture, camellias are deeply loved by horticulture enthusiasts for their beautiful flowers and evergreen characteristics. However, many novices often experience withering of the plants due to improper soil preparation, unbalanced temperature control, and other issues during the maintenance process. This article will systematically analyze the five key elements of camellia cultivation.Soil ManagementHumus PreparationThe root system of camellias requires high soil permeability, so it is recommended to use a ternary mixed matrix of decomposed leaf soil (40%), perlite (30%), and fermented pine needles (30%). Every quarter, crushed peanut shells or sawdust can be added to increase the organic matter content, and the effect is even better when combined with decomposed sheep manure as a base fertilizer.Acidity AdjustmentRegularly use pH test paper to check the soil and maintain a slightly acidic environment of 5.5-6.5. When the pH value is too high, you can use a diluted 500-fold white vinegar solution to water and adjust, no more than twice a month.Temperature and Light ControlSummer CoolingWhen the temperature exceeds 30°C, it is necessary to set up a shading net (shading rate 50%) and spray water on the ground to cool down. It is recommended to place thermal insulation foam boards at the bottom of the pot to prevent heat damage to the roots.Winter Supplemental LightingBelow 5°C, move the plant to the south-facing window inside and supplement with LED plant grow lights (4-6 hours daily). Keep the day and night temperature difference within 8°C to avoid bud drop.Propagation TechniquesCutting OperationSelect semi-woody branches, retain 2-3 leaves, and soak in rooting powder for 30 minutes. Insert into a vermiculite and peat (1:1) matrix, maintain 85% air humidity, and 25°C environment for about 45 days to root.Post-CareAfter the new plant unfolds its leaves, gradually increase the light, and every 15 days, water with a thin liquid fertilizer containing phosphorus and potassium (EC value ≤ 1.2) for the first three months. The first pot change can be done in the following spring.Advanced MaintenanceBlossom ManagementDuring the bud formation stage, apply phosphorus and potassium fertilizer (1000-fold solution) once every 10 days. Timely thin out the buds, leaving 1-2 strong ones on each branch.Disease PreventionRegularly spray mancozeb to prevent (T-J) disease, and during the爆发 period of scale insects, use spirotetramat for eradication.By precisely controlling soil structure, temperature and light conditions, and propagation techniques, combined with scientific fertilization and watering management, even horticulture novices can cultivate camellias with flourishing flowers and leaves. It is recommended to establish a maintenance log, recording each pruning and fertilizing data to gradually master the plant's growth patterns.