Cactus knowledge and cultivation introduction of Euphorbia golden crown
Abstract: Introduction to the succulent plant cactus, knowledge of Euphorbia golden crown cultivation, which will definitely bring you help. Let's learn about it together!
Euphorbia golden crown, also known as yellow thorn Euphorbia golden crown, is the most charming type of cactus in the Euphorbia family and genus. There are several main variants in cultivation, such as white thorn Euphorbia golden crown, wild thorn Euphorbia golden crown, short thorn Euphorbia golden crown, Euphorbia golden brocade, and Euphorbia golden crown crown.
Origin and habits: Euphorbia golden crown is native to the desert areas of Mexico and is now cultivated in both southern and northern China. It prefers sufficient sunlight, fertile, and well-drained sandy loam soil. During the hot summer, it should be properly shaded to prevent the cactus from being burned by strong sunlight.
Morphological characteristics: Euphorbia golden crown has a spherical stem, deep green body, densely covered with yellow hard spines, and the top of the ball is densely covered with golden yellow wool. The flowers are yellow, terminal among the wool clusters,吕-sized, very beautiful and spectacular; the fruit is covered with scales and wool, and the seeds are black and smooth.
Propagation techniques: Euphorbia golden crown is propagated by播种(sowing) and grafting of young balls.
1. Sowing method: The seedlings have a high germination rate when using seeds collected in the same year. Sowing is done from May to September. After 30 to 40 days of germination, the young ball has reached the size of a grain of rice or mung bean and can be transplanted or grafted onto a rootstock for rapid growth.
2. Grafting method: The seedlings cultivated for more than 3 months are grafted onto soft-stemmed plants for rapid growth. When the scion reaches a certain size or the rootstock can no longer support it, it can be cut off, the wound dried, and then transplanted into a pot. In a fertile soil and well-ventilated environment, the seedlings without grafting also grow rapidly. After potting the seedlings or grafted balls, they should be placed in a semi-shaded area, avoiding direct sunlight. If the ball does not shrink after 7 to 10 days, it has survived.
Management techniques: Euphorbia golden crown prefers calcareous sandy loam soil, which can be mixed with equal parts of coarse sand, loam, decomposed leaf soil, and a small amount of old wall ash. It should be repotted and the old roots pruned once a year. In mid-March, remove the ball from the pot, prune the old roots without damaging the main root. After pruning, place it in a ventilated area to dry for 4 to 5 days to allow the cut to heal; the new potting soil should be mixed with fermented animal manure as a base fertilizer, mixed with coal ash, plant ash, and a small amount of animal bone meal; the pot should be disinfected using sunlight, boiling, and spraying to prevent rotting of the ball.
Euphorbia golden crown prefers sufficient sunlight but semi-shade in summer. When the temperature reaches 35℃ or higher, it should be shaded from noon to prevent the ball from being burned by strong sunlight. It can be placed in the sun before 10 a.m. or after 5 p.m. to promote more flower buds and avoid excessive shading, which may cause the ball to elongate and reduce its ornamental value. Keep the temperature at 8 to 10℃ during winter and keep the potting soil dry. The ball will develop yellow spots if the temperature is too low. Prevent rain in summer.
Summer is the peak growing season for Euphorbia golden crown, and water requirements increase. During dry spells, water frequently, preferably in the early morning and evening. Avoid watering with cold water during the hot noon, which can cause "chills" and lead to disease. If the potting soil is too dry in the middle of the day, lightly spray water to moisten the surface. Do not spray water on the top of the ball or grafting site to prevent rotting. During the growing period, apply a dilute fertilizer containing nitrogen, phosphorus, and potassium once or twice every half month, combined with watering. Organic fertilizers should be fully decomposed and used at the appropriate concentration.
Euphorbia golden crown has a strong constitution and resistance to disease, but in summer, due to humidity, heat, and poor ventilation, it is prone to pests such as red spiders, scale insects, and whiteflies. Preventive measures should be strengthened. For red spiders, spray with 40% dimethoate or 90% trichlorfon at a concentration of 1000 to 1500 times. If scale insects or whiteflies are found, they can be manually removed.
Ornamental value: Euphorbia golden crown has a long lifespan, is easy to cultivate, and the mature large Euphorbia golden crown has lush flowers and a辉煌(golden) appearance, making it highly ornamental. Moreover, it occupies little space and is an ideal ornamental plant for urban home greening.
Do you understand the detailed introduction of Euphorbia golden crown cultivation knowledge shared in this article?