Camellia is a traditional famous flower in China, one of the world famous flowers, the flower of Jinhua City, Zhejiang Province, and the flower of Yunnan Province, China Province. Because of its beautiful plant shape, bright green leaves and colorful flowers, it has attracted the attention of horticultural circles all over the world. In Jinhua, there is a special camellia park, where there are many camellias. The cultivation technology of camellia in China has entered the court and people's courtyard as early as the Sui and Tang Dynasties. In the Song Dynasty, camellia cultivation became more and more popular. Fan Chengda, a poet in the Southern Song Dynasty, once described the grand occasion of camellia blooming in Liuhai Temple in Chengdu with the poem "The door is like a Shili Temple in the city, and the wax figure has a bright future". Camellia was first introduced to Japan in the 7th century, and/kloc-0 has been introduced to Europe and America for many times since the 8th century. Camellia cultivation techniques 1: It is better to plant camellia in Jiangbei in spring and Jiangnan in autumn. Land with good drainage and strong water retention should be planted. Sandy loam rich in humus. Potted humus soil, sandy soil, 1/3 manure soil, or 4 parts humus soil, 5 parts peat soil and 1 part coarse sand mixed culture soil were selected. The PH value is 5-6.5. The planting site should be chosen where there is no water and no sun exposure. Potted camellias should be placed in a ventilated and light-transmitting place in winter and in a shade shed or other cool places in summer. Don't fiddle with tea flowers, otherwise it will be bad for their growth. Camellia cultivation technology 2: Light-temperature camellia is a long-day plant. Flower buds can only be formed in the environment of day length 12 hours. The optimum growth temperature is 18~25, and the optimum flowering temperature is 10~20. If it is higher than 35, the leaves will be burnt. It has no cold resistance, and is suitable indoors in winter. The temperature is kept at 3~5, and it can tolerate the low temperature of-16 for a short time, but it should not exceed 16 for a long time, otherwise it will promote germination and cause defoliation. The growing season should be placed in a semi-shady environment, not in direct sunlight. Especially in summer and autumn, it should be cool or placed in a cool place under a tree. Camellia cultivation technology 3: watering and fertilizing Camellia requires high fertilizer and water, and neutral and alkaline loam is not conducive to its growth. In the north, special attention should be paid to acidifying alkaline water before watering flowers. The specific method is to store the rice washing water for 2 days to volatilize the chlorine in the water, and then add an appropriate amount of ferrous sulfate. Don't water too much, or the roots will rot. Pot soil can't be dried, otherwise the roots will shrink due to water loss, so it is advisable to keep the pot soil and surrounding environment moist. Don't spray water during flowering. It is best to apply thin ettringite fertilizer, but avoid applying thick fertilizer. Generally, thin fertilizer is applied every 17 days after germination in spring, and phosphorus and potassium fertilizer are applied in summer. Fertilization can be stopped for about a month in early autumn. Apply alumina fertilizer before flowering, and apply quick-acting phosphorus and potassium fertilizer when flowering, with large flowers, bright colors and long flowering period. Camellia cultivation technique 4: shaping and pruning. Camellia planting is mainly to cut off dead branches, diseased branches, cross branches, too dense branches and other branches that obviously affect the tree shape, and to sparse redundant buds. In addition to the above work, potted camellia should be pruned according to personal preference, but it should not be pruned again because its growth potential is not strong. Camellia cultivation technology 5: flowering control Because camellia is not cold-resistant, delayed flowering is not commonly used. Generally, the flowering period is controlled by variety selection, temperature control and hormone treatment. In order to make camellia blossom in June 5438+065438+ 10, we can dip a brush in 0. 1% gibberellin in mid-July or early August, and smear it on the bud every three days for normal fertilizer and water management. Decide whether to plant flowers in September according to the growth of flower buds. If it is estimated that the Eleventh Five-Year Plan is unsafe, it can be increased.