What are the methods for propagating Allamanda cathartica by cuttings?
Allamanda cathartica (detailed introduction) is not difficult to cultivate, and it has a long flowering period and bright flower colors, making it very suitable for ornamental use. In fact, Allamanda cathartica also has certain medicinal value, with certain effects in reducing swelling and killing insects. Generally, artificial propagation of Allamanda cathartica can use the cutting method.
Allamanda cathartica
Allamanda cathartica is generally propagated by cuttings. In spring and autumn, select 1-2 year old plump branches, cut them into 15-20cm long cuttings with 3-4 nodes, insert them into plain sandy soil, place them in a bright spot, keep them moist regularly, and under a temperature of 20°C they will root in about 20 days. When the seedlings are 10cm tall, they can be pinched back and transplanted or potted. It is worth noting that after cutting the cuttings from the mother plant, you must wait until the latex at the cut is completely dry before inserting them into the sand bed, otherwise the survival rate will not be high.
Allamanda cathartica propagation methods and precautions
Allamanda cathartica is native to Brazil and was introduced for cultivation because of its large, brightly colored flowers. So how does Allamanda cathartica propagate? What should be noted during the propagation process? Next, let us look at the propagation methods and precautions for Allamanda cathartica.
I. Allamanda cathartica propagation methods
Allamanda cathartica propagation usually uses the cutting method. Generally, in spring and autumn, cut semi-mature branches 12cm-18cm long. The cuttings have 2-4 stem nodes; insert them diagonally into a loose seedling bed in a timely manner, keep them moist, but avoid excessive water. With suitable temperature, they root very easily. The suitable temperature during the growing period is 22°C-30°C.
In spring and autumn, select 1-2 year old plump branches, cut them into 15-20cm long cuttings with 3-4 nodes, insert them into plain sandy soil, place them in a bright spot, keep them moist regularly, and under a temperature of 20°C they will root in about 20 days. When the seedlings are 10cm tall, they can be pinched back and transplanted or potted. It is worth noting that after cutting the cuttings from the mother plant, you must wait until the latex at the cut is completely dry before inserting them into the sand bed, otherwise the survival rate will not be high.
II. Precautions for Allamanda cathartica propagation
1. The optimum temperature for Allamanda cathartica is 20°C-30°C. Below 20°C, the cuttings root with difficulty and slowly; above 30°C, the upper and lower cuts of the cuttings are easily infected by pathogens and rot, and the higher the temperature, the greater the proportion of rot. When low temperatures are encountered after cutting, the main measure for keeping warm is to wrap the flower pot or container used for cuttings with plastic film; when the temperature is too high after cutting, the main measure for cooling is to shade the cuttings, blocking out 50-80% of sunlight.
2. For Allamanda cathartica, the relative humidity of the air must be kept at 75-85%. The basic requirement for cuttings to root is that before the cuttings have rooted, it must be ensured that the cuttings stay fresh and tender so they can carry out photosynthesis to produce rooting substances. However, cuttings that have not rooted cannot absorb enough water to maintain their internal water balance. Therefore, misting must be used to reduce water evaporation from the cuttings. Under shaded conditions, mist the cuttings 3-5 times per day; the higher the temperature on sunny days, the more frequently you should mist, while on cloudy and rainy days with lower temperatures, mist less often or not at all.
3. Allamanda cathartica cannot do without sunlight, because the cuttings still need to continue photosynthesis to produce nutrients and rooting substances to supply their rooting needs. However, the stronger the light, the higher the temperature inside the cuttings, the more vigorous the transpiration of the cuttings, and the more water they consume, which is not conducive to the survival of the cuttings. Therefore, after cutting, 50-80% of sunlight must be blocked out, and after the root system grows out, gradually remove the shade net.
The above isAllamanda cathartica propagation methodsand an introduction to the precautions for Allamanda cathartica propagation. Friends who want to propagate Allamanda cathartica themselves can refer to this. Improve the success rate of propagation.
Key cultivation points for Allamanda cathartica
The flowering period of Allamanda cathartica (detailed introduction) is June-October. The flowering period is relatively long and the flower colors are bright. In southern China, Allamanda cathartica can bloom almost all year round. The artificial cultivation of Allamanda cathartica is not difficult, and it is very suitable for ornamental use. The editor will introduce the key cultivation points of Allamanda cathartica for you.
Allamanda cathartica
The growing environment of Allamanda cathartica: it likes high temperature and high humidity, and is a sun-loving plant, so the cultivation site needs full sun. It is generally propagated by cuttings, with spring and autumn being the suitable periods. For soil, sandy loam or leaf mold with good drainage gives the best growth. The key point of water management is to keep the soil slightly moist.
Allamanda cathartica is native to tropical America. In a high-temperature and high-humidity environment, it likes light but fears scorching sun, is not cold-tolerant, and is suitable for fertile, well-drained acidic soil. For potted Allamanda cathartica, after being brought out in spring, place it on the north side of the house or another semi-shady, moist spot. Dead branches, weak branches, and branches that disrupt the tree shape should be pruned once or cut short, and several applications of fertilizer water should be added to promote the sprouting of new shoots. If the plant is relatively tall and the lower part has become bare, the suckers at the base can be appropriately retained and pinched back, so as to gradually replace and renew the old plant. Usually, water before the soil dries out completely, and frequently spray water on the plant and around it to increase environmental humidity. During the growing season, fertilize once every 7-10 days, alternating manure fertilizer and superphosphate, to ensure that the branches grow plump and the flowering period lasts. After moving indoors in winter, the room temperature should be kept above 10°C, and the potting soil should also be relatively moist. If the temperature is too low or the moisture is inappropriate, the leaves will fall off.