If you like exotic succulents, don't miss the spider silk roll silk (Sempervivum arachnoideum), a particularly popular common succulent that belongs to the genus Sedum, with many tiny white threads wrapped between the leaves that look like spiders weaving webs on the leaves.

The potted spider silk roll silk (Sempervivum arachnoideum) is covered with side buds
Spider silk is an extremely hardy succulent, but it is more afraid of excessive heat, and in the summer heat, it will enter dormancy (the plant will wilt, or even wither), and will resume growth in autumn.
1. Maintain the environment
Spider silk rolls in the crevices of the long alpine stone
Spider silk originally grew in the mountainous regions of Europe, such as the Alps, it is an alpine plant, like a cool environment, its plant is relatively low, the leaves grow up to 8 cm high. However, it will grow a relatively tall flower stem, and it is particularly easy to grow side buds, and its leaves will grow into a lotus seat shape, and the overall ornamental effect is still very good.
Spider silk roll silk and its flowers
Spider silk silk can be directly exposed outdoors, even if the winter temperature is more than 10 degrees below zero, it can be safely spent outdoors.
Spider silk especially like light, in the spring and autumn and winter can be given full sun care, in the summer when the light is too strong, you need to be in the noon and afternoon shade maintenance also pay attention to avoid the environment of hot and humid, there is good ventilation is also more critical, if in the sweltering or humid environment, its plant is easy to wither, in addition to the summer rainy season to properly avoid rain, and pay attention to enhance ventilation, high temperature time to control watering (temperature is higher than 35 degrees, to stop the water).
Above is the spider silk curl silk subspecies Sempervivum arachnoideum subsp. tomentosum
2. Proper fertilizer
In autumn, the silk rolls can be watered normally, but it is also necessary to wait until the potting soil is completely dry before watering. In the spring and autumn, you can sprinkle a slow-release fertilizer in the potting soil, and you can use some slow-release fertilizer with a high content of phosphorus and potassium.
In the summer is too hot and the winter is relatively cold, you must stop fertilization, in addition to slow-release fertilizer, in the spring and autumn, you can also add water-soluble fertilizer every 2 to 4 weeks, the concentration is half lower than usual.
Wait until late autumn and winter, after the temperature gradually decreases (below 15 degrees), it is also necessary to start controlling watering, in the temperature is relatively low, especially the temperature is close to zero degrees (to stop watering), coupled with sufficient light, its leaves will change from green to red, and the ornamentality will be better.
3. Pay attention to the propagation of separate plants
If you want to propagate spider silk silk is also very simple, it is propagated by splitting and cuttings, and some side branches will grow around the plant of spider silk roll, which can be cut as long as the diameter is more than 1.5 cm, and the wound can be dried in the potting soil.
It is easy to propagate the plants and cuttings in the spring and early summer, and the side branches can be buried shallow in the pot soil, allowing them to take root and then prune and transplant. Side branches can also be cut off directly and planted separately in new pot soils.
4. The choice of potting soil
Above is a silk roll of dormant summer silk
The soil of the spider silk roll must be loose and breathable enough, it is originally grown in the rock crevices of the high mountains, and the requirements for the permeability and drainage of the soil are relatively high, do not use ordinary yellow soil and vegetable garden soil for planting. The soil can choose peat soil and granular stone, mixed in a 1:1 ratio, peat soil to choose a relatively large particle, and granular stone can use the common red jade soil, maifan stone, diatomaceous earth, deer swamp soil, verolite and cinder.
The pots planted with spider silk silk should not be too large, not choose a slightly smaller pot, and the permeability and drainage of the pots should be good, it is best to choose red clay pots.
5. Humidity and ventilation
The environment of the maintenance of spider silk silk should be maintained well ventilated, to avoid high air humidity, it is more like a dry environment, if the air is relatively humid, it is easy to breed germs, pot soil continues to be humid, and it is easy to cause rotten roots.
Dormant spider silk rolls
The environment of raising potted spider silk silk is suitable, it will also flower, the plant grows fuller, it will bloom in May to June, after flowering, its mother plant will hang off, but there will be many side branches next to the mother plant. Therefore, when there is usually free time, it can be divided and propagated in the spring and autumn.
6, the appropriate temperature
Planting spider silk silk should have a suitable temperature, the temperature is between 12 and 22 degrees to grow optimally, and in the summer the temperature is higher than 30 degrees, it will stop growing. Its hardiness is relatively good, as long as the plant grows strong, it can tolerate a few degrees below zero, or even a low temperature environment of more than 10 degrees below zero.
7. Pay attention to watering
The reason why a lot of white silk threads will grow on the leaves of spider silk rolls is actually to protect them from strong light. When watering the spider silk rolls, try not to pour it on the leaves, that is, to avoid damage to these white silk threads, but also to avoid frequent rain.
Do not water the bonsai spider silk roll silk frequently, and when the rainy season comes, we must pay attention to raising them in a rainy environment to increase environmental ventilation. In the spring and autumn when the weather is cool, you can wait for the topsoil to dry 3 to 5 centimeters, you can water it in time, generally it is 2 to 3 days watering once. In the summer and winter is the season of dormancy of spider silk rolls, this time is generally in the clear weather, every 2 to 4 weeks to replenish water, during the dormancy do not water thoroughly.
8. Avoid insect infestation
A variant of spider silk silk Sempervivum arachnoideum "Robin"
In order to avoid the breeding of insect pests in potted spider silk rolls, it is necessary to spray drugs regularly to prevent, and generally use solid insecticides for indoor maintenance, such as the common small white medicine (furazodine), every time planting, bury some small white medicine under the pot surface on the edge of the pot, directly buried in the edge of the pot, and the normal watering in the later stage can play a medicinal effect.
If a worm (mesozoan) has been bred, it can be dipped in alcohol with a cotton swab and applied to the place where the insect is infected, evenly applied, and the insect pest can also be removed.