1, camellia pruning time
Camellia can be pruned every spring in three times. The first pruning is in1-February every year, when the camellia has not yet reached the flowering stage, the second pruning is in March when the camellia is in full bloom, and the third pruning is in May.
Second, the pruning method of camellia
Pruning: With the growth of camellia, its branches will become denser and denser, which will affect the ventilation and light transmission inside the plant. It is necessary to prune and cut off all over-dense branches and cross branches in time, and check whether there are dead branches and diseased branches, and also cut them off to avoid further deterioration.
Picking buds: In order to ensure that camellia can bloom better, it is usually necessary to pick buds after budding. Keep the number of buds according to the strength of branches. For thin branches, you can leave less or not, and for thick branches, you can leave more. In addition, sparse buds should be even, not only on one side.
Shaping: Pruning can not only make camellia grow and bloom better, but also increase its ornamental value. For some erect varieties, it is generally necessary to cut them short from the upper part. For slow-growing plants, it is necessary to cut off too long branches to make them the same length. For varieties with large crown, the crown width needs to be trimmed.
Cultivation method of camellia japonica
1. Fertilization: When planting or changing pots, appropriate amount of decomposed organic fertilizer or bone meal can be added to the bottom of pots as base fertilizer to make the soil more fertile. Fertilization is needed to promote germination in spring, and nitrogen fertilizer should be applied every 10 day to accelerate lignification of new shoots. It can also be used in combination with foliar fertilizer to promote the rapid growth of plants.
The flower bud differentiation stage was changed to phosphorus and potassium fertilizer, and dilute potassium dihydrogen phosphate solution was applied every 10 day to prevent overgrowth and promote flower bud formation. In autumn, the temperature gradually decreases, and applying phosphorus and potassium fertilizer every half month is beneficial to overwintering.
2. Watering: Camellia is thoroughly watered and dried, the soil surface is dry and white, and the leaves of the plant are slightly wilted and drooping, indicating that watering is needed. Keep the soil moist in spring and generally water it once every 1-2 days; Water the basin once every morning and evening in summer to keep the bottom of the basin moist. It is also necessary to spray water frequently to cool and humidify. Pay attention to the inadvisability of watering at noon in summer. Water once a week in autumn. Water it about twice a month in winter.