What issues should be paid attention to in the maintenance of chrysanthemums
As a traditional famous flower in China, the maintenance management of chrysanthemums directly affects the quality of flowering. Mastering scientific maintenance methods can not only extend the flowering period but also cultivate beautiful ornamental plants. This article will systematically analyze the five key elements of chrysanthemum cultivation, from soil preparation to pruning techniques.
Key points of core technology for chrysanthemum cultivation
Substrate proportion and pH control
The root system of chrysanthemums requires high soil permeability, and it is recommended to use a mixture of decomposed leaf soil, river sand, and garden soil in a ratio of 4:3:3. The substrate needs to be replaced every 2 years, and bone meal should be added as a base fertilizer when repotting. Regular testing to keep the pH stable within the range of 6.0±0.5 can effectively prevent yellow leaf disease.
Temperature gradient management plan
During the growing period, maintain an optimal day-night temperature difference of 15-25°C. In summer, shading and ventilation are required when the temperature exceeds 30°C. The overwintering temperature should not be kept below 3°C for a long time, and it is recommended to move the plants indoors before winter in the northern regions, with LED grow lights providing 6 hours of light daily.
Intelligent irrigation system setup
Follow the principle of watering when the soil is dry and wet, and water thoroughly when the soil moisture meter shows 30%. A rain shelter should be set up during the plum rain season, and avoid spraying the leaves at noon during the high-temperature season. It is recommended to use siphon self-watering pots, which can reduce the risk of root rot by 80%.
Nutrition cycle fertilization method
Apply chrysanthemum-specific slow-release fertilizer every 15 days during the growing period, and increase the application of potassium dihydrogen phosphate foliar fertilizer during the bud formation period. Pay attention to applying thin and frequent fertilization, and organic fertilizers must be fully decomposed. It is recommended to use the circular trench fertilization method to avoid fertilizer contact with the base of the stem.
Complete guide to chrysanthemum shaping and pruning
Early-stage pinching technique for shaping
Pinch for the first time when the seedlings reach 15cm, leaving 4-6 true leaves. When the secondary branches reach 8cm, pinch again, and use aluminum wire to guide the ideal plant shape. Remove the basal suckers in time to ensure that nutrients are concentrated (G-Y).
Key points of pruning during the flowering period
Remove side buds during the bud formation period and retain the terminal bud. After flowering, cut the spent flowers to the second five-lobed leaf. In winter, cut back to leave a 15cm trunk and apply wood ash to the cut surface to prevent diseases. Use a rotating flower stand to adjust the light-exposed side regularly, which can cultivate a 360-degree ornamental plant shape.
Through the combination of scientific pruning and precise maintenance, not only can the ornamental period of chrysanthemums be extended to over 3 months, but also high-quality plants with a flower diameter of over 25cm can be cultivated. It is recommended to keep a maintenance record every month and adjust the management plan dynamically based on the plant's condition.