The latest method of cultivation of elixir flowers

Xiandan flower, also known as Shandan flower, dragon boat flower, etc., is an evergreen shrub of Rubiaceae, which can bloom all the year round, but it is in full bloom in summer and autumn, with 4 petals, gathering into clusters, delicate and beautiful flowers, drought and high temperature resistance, strong nature, suitable for garden beautification and potted plants, and so on. Let's take a look at the breeding methods of Xiandan flowers.

Growth habits of Xiandan Flower

Xiandan flower is native to tropical Asia, there are more than 20 varieties, evergreen shrubs or small trees, leaves opposite, entire. It can blossom all the year round, but it is more blooming in summer and autumn, with 4 petals, gathering into clusters, delicate and beautiful flowers, drought and high temperature resistance, strong nature, suitable for garden beautification and potted plants.

Propagation methods of Xiandan Flower

1. Cuttage is best carried out from June to July. In the rainy season, one-year-old branches are taken and cut into segments 10 to 15 centimeters long, and the basal leaves are removed. The cuttings are cut at 24 to 30 ℃ at room temperature and placed in sand beds (pots) or directly in the beds of sandy soil. For example, before cutting, soaking the base of cuttings with 0.5% indolebutyric acid solution for 3-5 seconds can shorten the rooting period and the root system is particularly developed. Watering the sandy soil every day after planting can keep the sandy soil moist, it can take root in about 30 days, and can be transplanted or pots 10 days after rooting.

2. Sowing: the seeds were collected in winter and sowed in spring the following year, and the optimum temperature for germination was 22 ~ 24 ℃. The seeds were sown in indoor seedling trays and germinated in about 20 ~ 25 days. The seedlings can be transferred to 8 cm pot when 3-4 pairs of true leaves are produced. But the adult period is longer. In the case of many and dense branches, striping can also be used to propagate, 20 cm from the top, ring peeling, bound with peat and film, about 2 months can heal and take root.

The Culture method of Xiandan Flower

1. Temperature: Xiandan flowers like sunshine, warmth and cold resistance, so they should be placed in sunny courtyards, roof gardens and south and west balconies. When the lowest temperature in winter drops to 5 ℃, it should be moved indoors and maintained in a sunny place in the windowsill. Keeping the room temperature above 5 ℃ can safely survive the winter, and the next spring temperature above 10 ℃ can be out of the room.

2, potted soil: elixir flowerpots should be planted with clay pots with good permeability, such as purple sand pots and plastic pots with poor permeability and beauty. Can be in the basin bottom cushion broken tiles or broken hard plastic foam block to enhance air permeability and drainage. The basin soil is required to be rich in humus, loose and fertile acid soil, and the suitable pH value is 5.0-6.5. Do not use saline-alkali soil and heavy clay, the culture soil can be prepared according to 4 parts of rotten leaf soil, 4 parts of sandy loam soil, 2 parts of river sand, and properly mixed with some mature soybean cake powder or sesame oil residue, or a little hoof powder can be put on the bottom of the basin as base fertilizer.

3. Fertilization: Xiandan flowers like fertilizer, a small amount of nitrogen, phosphorus and potassium compound fertilizer should be applied once in about half a month during the growing period, and nitrogen fertilizer should not be applied alone, otherwise the branches and leaves will grow and the flowers will be few. The second mature soybean cake water was applied from the middle of April to the beginning of May, the mixed liquid fertilizer of nitrogen and phosphorus was applied for 2 times from the middle of May to the bud, and the liquid fertilizer of mature phosphorus was also applied for 2 times at flowering stage.

4. Watering: the soil of the elixir flowerpot should be dry and wet, and should be watered thoroughly, not watered. Water is watered every 4 days in spring, once every two days in summer, and sprinkled around potted flowers every morning and evening to improve air humidity. It is appropriate to irrigate with soft water in summer, hard water is disadvantageous to the growth of Xiandan flowers, light leaves are yellow, heavy ones die. In order to overcome the alkalinity of soil and water quality, alum fertilizer was irrigated once a week during the growing season to keep the leaves green.

5. Pruning: Xiandan flowers should be pruned in early winter, keeping strong branches, cutting off disease and insect branches, weak branches, over-dense branches and so on. When pruning Xiandan flowers, you should pay attention to picking the heart, and when the seedlings are 15 to 20 centimeters high, pick the heart once to promote its multiple branches and make the plant shape plump. It also needs to be pruned many times after flowering. When turning the basin and changing the soil every spring, the old overwintering plant is left about 20 centimeters to make a re-cut.