Ruyi flower, another name: five color plum, five color flower, five color Hydrangea, etc. Beautiful flowers are often cultivated in gardens all over China for viewing. The root, leaf and flower are used as medicine. They have the effects of clearing away heat and toxin, relieving pain, dispelling wind and relieving itching. So how to breed this Ruyi flower? What should we pay attention to in breeding? Let's read on~
Growth habit of Ruyi flower: Ruyi flower is native to Brazil, South America and other places. It likes warm, humid and sunny environment. It is suitable for growing at 20-25 ℃. It is slightly resistant to drought but not cold. When the temperature is below 8 ℃, it will stop growing. Therefore, most of the northern areas are mainly potted.
Cultivation method of Ruyi flower: Ruyi flower generally adopts cutting, often in late spring and early autumn with the branches of the year for tender cutting, or in early spring with the branches of the year for old cutting.
1. Cutting substrate: it is the nutrient soil or river sand, mud carbon soil and other materials used for cutting. It is difficult to get the ideal cutting medium for family cutting due to the limited conditions. It is suggested to use the prepared and detoxified cutting medium; It's OK to use medium coarse river sand, but wash it with clean water several times before use. Don't use sea sand and river sand in saline areas, they are not suitable for the growth of flowers and plants.
2. Selection of cutting branches: during softwood cutting, from late spring to early autumn, when the plant grows vigorously, the current year's strong branches are selected as cuttings. After cutting the branches, select the strong parts and cut them into 5-15 cm long sections, with more than 3 leaf nodes in each section. When cutting cuttings, it should be noted that the upper cut is about 1 cm above the top leaf node, and the lower cut is about 0.5 cm below the bottom leaf node. The upper and lower cut should be flat (knife should be sharp). For hardwood cutting, after the temperature rises in early spring, select the robust branches of the previous year as cuttings. Each section of cuttings usually retains 3-4 nodes, and the cutting method is the same as that of softwood cutting.
Pink Ruyi flower
3. Temperature: the optimum temperature for cuttings rooting is 20-30 ℃, lower than 20 ℃, cuttings rooting is difficult and slow; When the temperature is higher than 30 ℃, the upper and lower cutting edges of cuttings are susceptible to pathogen infection and rot, and the higher the temperature is, the greater the proportion of rot is. When the temperature is low after cutting, the main measure of heat preservation is to wrap the flowerpot or container with film; When cutting temperature is too high, the measures to cool down are mainly to shade the cuttings, cover 50 to 80% of the sunshine, and spray the cuttings 3~5 times a day. The higher the temperature is, the higher the temperature is, the lower the temperature is, the less the time is.
4. Humidity: the relative humidity of air must be kept at 75-85% after cutting. The basic requirement of cuttings rooting is that before cuttings rooting, cuttings must be fresh and tender, and photosynthesis can be carried out to produce rooting materials. However, no rooted cuttings can not absorb enough water to maintain the water balance in the body. Therefore, spray evaporation must be adopted to reduce the water evaporation of cuttings: under shading conditions, sprays are sprayed 3~5 times a day, the higher the temperature is, the higher the number of sprays is, the lower the temperature is, the less the number of sprays is. But spraying too much, the cuttings are easily rotted by the infection of bacteria, because many kinds of germs exist in water.
5. Light: cutting propagation can not do without sunlight, because cuttings have to continue photosynthesis to produce nutrients and rooting materials to supply their rooting needs. However, the stronger the light, the higher the temperature inside the cuttings, the more vigorous the transpiration of cuttings, and the more water consumed, which is not conducive to the survival of cuttings. Therefore, it is necessary to shade 50-80% of the sunlight after cutting, and gradually remove the shading net after the root system grows: remove the shading net at 4:00 p.m. every day on a sunny day, and cover the shading net before 9:00 a.m. the next day.
Beautiful Ruyi flower