What are the cultivation methods and precautions for string of pearls?

String of pearls (Senecio rowleyanus) is a variety of hanging plant with high ornamental value, and it is currently distributed in many places in China. The appearance of string of pearls is quite distinctive, with leaves forming spheres, just like little green pearls, which is how it got its name. For those who like string of pearls, it is very important to understand its cultivation methods.

How to grow string of pearls

1. Light: When grown outdoors in summer, pay attention to shading so that the light is not too strong, otherwise sunscald is very likely to occur. When overwintering indoors in a greenhouse in winter, pay attention to lighting to prevent the leaf color from fading due to insufficient light.

2. Soil: The plant's root system is very shallow, so it can be planted in a shallow pot. Generally, a tile is used to cover the bottom hole, and a layer of coal cinder or coarse sand is spread on top to increase aeration and drainage (especially when planting in the commonly used plastic pots today). The soil is best made of leaf mold (fallen leaves from trees in autumn and winter mixed with a certain amount of crushed soil and a certain amount of sand; the ratio of soil to sand is about 1:3).

3. Temperature: It likes warmth and humidity, is relatively cold-tolerant (when cultivated in the Jianghuai region it can tolerate a low temperature of 0°C), and is heat-tolerant. The optimum temperature is about 20°C~28°C. Growth is slow at both high and low temperatures, and especially in a high-temperature environment above 30°C it is almost dormant, so watering and fertilizing should be reduced, otherwise root rot easily occurs -- this is also one of the keys to successful cultivation.

Cultivation methods and precautions for string of pearls

1. Cultivation methods:

1. Watering: Root rot easily occurs in summer, so watering should not be too frequent, and a small spray bottle should be used for watering.

2. Fertilizing: In spring and autumn, "apply light fertilizer frequently"; spraying 1-3‰ nitrogen fertilizer and potassium dihydrogen phosphate on the leaf surface often helps make it more emerald green and plump, improving its ornamental value.

3. Pests and diseases: There are very few pests and diseases. Aphids in spring are one of them; remove them promptly or spray 1500 times diluted omethoate to kill them. Mites in summer and autumn are the next; 1000 times diluted dicofol is needed to kill them. Pay attention to ventilation and increase leaf surface humidity, which can reduce mite infection.

2. Precautions:

String of pearls likes a semi-shaded environment. If the placement site has too strong or insufficient light, the leaves easily turn pale green or yellow-green, lack vitality, lose their proper ornamental value, and may even dry up and die. If exposed to direct sunlight and dry air, it is most likely to cause the hanging plant to scorch, so it should be placed in a cool, ventilated place, and care should be taken to maintain environmental humidity.

How to divide string of pearls into pots

1. When dividing string of pearls into pots, wash the soil off the roots with water, place it in a cool place to dry until you find that the fleshy roots have softened, then find a place where the gap between leaf clusters is slightly wider and cut it open with scissors. Be careful not to damage the other branches and leaves.

2. After cutting the branches and leaves, gently tap the pot soil to loosen it, then take string of pearls out and remove the soil from the roots. At this time you should observe carefully: if several plants are growing connected together, you should gently pull the connected plants apart with your hands. If it is one large plant that is hard to pull apart by hand, in order not to damage the plant you need to cut it apart with a knife.

3. In this pot-dividing method, first place the pot upside down, then tap it gently, and pour out all the soil together with the seedlings, then gently break up and remove the soil clumps. Divide the plant into several clusters according to your own preference; you can put one cluster per pot, or one cluster in one pot, and in this way you can carry out pot division.

Common diseases of string of pearls and their control

1. Stem rot. Control method: In seasons with a high incidence of pathogens, keep the soil relatively dry and provide sufficient light and water. Before seasons with a high incidence of pathogens, try not to divide the plant or repot it, so as to reduce wounds on the leaves. Regularly use chemicals for sterilization.

2. Anthracnose. Control method: Water at the proper time and avoid excessive soil moisture. Fertilize moderately and apply more phosphorus and potassium fertilizer. Ensure good ventilation. Promptly remove diseased plants when found and clean them up thoroughly. Spray the leaves with Bordeaux mixture to sterilize and disinfect.

The cultivation methods for string of pearls are actually not difficult. You can start from its growth habits. During cultivation, you need to do a good job of soil proportioning, and in the later stage of cultivation you also need to strengthen management of light, fertilizer and water, and other aspects. Only by doing these well can you ensure the growth of string of pearls.