Bonsai production of Ruixiang

Bonsai production (1) Botanical knowledge

It belongs to the family Daphneaceae, genus Daphne. Evergreen shrub with smooth stems. Leaves alternate, long oval, multi-clustered branch top, entire, dark green and shiny. Flowering from March to May, head terminal, Corolla yellow-white to lilac, such as lilac-shaped, strong aroma. Daphne has whirling branches, soft strips and thick leaves, elegant posture.

(2) material selection and cultivation measures

Artificial propagation: Daphne multipurpose cutting, striping method, can also be used in water cutting, ramet, sowing method. Cutting can be carried out all the year round, but the best time for cutting is from early March to late June. Spring cuttings should select one-year-old stout branches as cuttings, which are about 5-10 cm in length. They can be cut around 0.1 cm at the branch point with a sharp knife the day before cutting to promote healing and rooting. If it is cut in a ring at the branch point, the cut should be cut and trimmed at the right time, and 2 or 4 leaves should be retained in the upper part of the cuttage; if it is not cut in a ring at the branch point, it can be cut separately if there are several ramet. The insertion depth is about 1B3 or 1B2 and should not be too deep. Family cuttage can be used in cuttage pots, such as large area cuttings must use seedbed, seedling bed soil quality to loose and fertile, good drainage of slightly acidic soil is better. After insertion, a protective shed should be built to prevent the sun and rain (bamboo can be bowed into a scaffolding 50 to 60 centimeters high, covered with plastic film). When the temperature is too high, the film shed must open a corner of ventilation, pay attention to control moisture, should not be too wet. Generally, it can be rooted in about 30 days after spring planting, and can be transplanted in about 2 months. If cutting in summer and autumn, cuttings must choose the new semi-lignified branches of the same year, and choose sturdy branches, about 8 cm long, with a heel on the branches. After insertion, it is necessary to keep the seedbed soil moist, pay attention to the heat preservation work when the temperature drops, generally can also take root in about 40 days, and then transplant and cultivate after the next spring is warm.

The method of high branch pressing can usually be used for striping propagation. The time of high branch pressure should be between May and June. First, select the appropriate branches, determine the high pressure part, use the notching method to horizontally carve one or two circles or annular peeling on the pressed part, the incision reaches to the xylem, then wrap the cut site in a plastic bag or half-half bamboo tube, tie it tightly at the lower end, apply growth hormone on the wound, then fill in the prepared culture soil, and wrap up the bag mouth at the upper end. Keep the soil in the bag moist and fix the high-pressure branches so as not to break. Generally, it can take root in about 40-50 days, and it can be cut from the mother branch and cultivated in the basin after about 2 months. The propagation of Daphne odorifera by water insertion is simple and easy, and the survival rate is also high.

(3) the process of potting.

Selection basin: Ruixiang should use a slightly deeper round basin or square basin, oval or rectangular basin can also be used. The texture of the basin is better with purple sand pottery basin. The potted color can be sunflower yellow or light gray to set off the green leaves and white flowers and produce the effect of drying clouds and supporting the moon.

Using soil: Ruixiang likes to grow in a fertile, loose, well-drained sandy loam, which requires a slightly acidic soil with a pH value between 6 and 6.5. Potted plants should be mixed with rotten leaf soil or sun-dried and weathered pastoral soil plus appropriate amount of rice chaff ash or sand.

Planting: it should be planted in the pot in April in spring. At this time, the climate is mild and humid, and the temperature difference between day and night is small, which is beneficial to the growth of Ruixiang clothing basin. Planting in autumn is also possible. When transplanting, you should take more lodging soil and prune the branches properly.

(4) Positioning techniques

Processing: Ruixiang bonsai should be modeled with wire climbing and pruning. However, attention should be paid to the timely removal of the wire, so as not to cause wire trapping and affect the beauty and growth. Processing modeling should be in the dormant period, can also be carried out after flowering.

Tree shape: the shape of the Ruixiang bonsai tree should be made into a natural tree shape, the branches should be tall and stretch, and pay attention to the density, so as to show the multiplication of flowers, rich color and fragrance, and increase the ornamental effect.

common problem

The phenomenon of rotten heart and root

The phenomenon of rotten heart and root in the cultivation of Daphne odora is mainly caused by improper management. Daphne adapts to warm climate, but does not tolerate strong light and likes semi-shade; its root is fleshy, resistant to dry and damp, easy to develop mosaic disease in high temperature and humidity season, color spots and deformities on the leaves of infected plants, poor flowering and heart rot. Prevention and cure method: spray Bordeaux liquid 23 times before the arrival of high temperature and humidity season, and put it in a cool place. If you find a rotten heart, you should cut off branches, leaves and flowers in time, and burn them to prevent spread. In particular, Phnom Penh Ruixiang delicate and difficult to raise, afraid of humid, low-pressure climate, cultivation should choose high-cool places to strengthen protection. During the growth period, we should pay attention to not applying big fertilizer and watering, and keep the basin soil in a semi-wet state. In summer, you should avoid storm, rain and sun rain. If you are suddenly attacked by wind and rain, you will wilt and die immediately. In case of this situation, you should move indoors in advance to take shelter; if you have been hit by wind and rain, you should use a knife on the sturdy branches in time. Cut 1-1.5 cm longitudinally from the cortex to the xylem, so that the excess water and gas in the plant body can be released to facilitate normal growth. If it is found that the leaves of the plant are sagging, the luster is lost, and subtle wrinkles appear, indicating that the root has rotted, if it is first developed, it can be rescued: dig out the seedling, wash the root with clean water, cut off the rotten root, then move it into a new basin, cover the plastic film in a cool place, and two weeks later, if the leaf stands up, it will be saved.