The magic knife of succulent plants of the genus crassulosaurus in Sedum family

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Magic knife, also known as sharp knife, is a succulent plant belonging to the family crassulaceae. Shendao is a perennial succulent herb, native to eastern South Africa, growing in a semi-shrubby shape in the origin, with a plant height of more than 1 meter. Magic knife-shaped leaves are thick and succulent, grayish green, without petiole, grow symmetrically close to the stem, arrange very neatly, the basal leaves are small, grow bigger and bigger, and the plant shape is just like a multi-bar sharp knife, which is very peculiar.

Magic Dao mostly blossoms at the turn of summer and autumn, the flowers are orange or bright red, made up of countless clusters of small flowers, the florescence is longer, up to more than a month.

Shendao likes warm, dry and semi-overcast environment, not cold-resistant, dry early, afraid of water accumulation, avoid strong light. The suitable temperature for growth is 15-25 ℃, and the winter temperature is not lower than 10 ℃.

What to do after the magic knife is bought back:

The magic knife you just bought should be placed on the windowsill or balcony with gauze curtains, not in places that are too shady and poorly ventilated. There is no need for more watering, the basin soil is a little damp. When hot and dry in summer, spray around the basin to increase the humidity of the air. Low room temperature in winter, such as wet basin soil, will lead to root rot, stem and leaf shrinkage.

Key points of maintenance:

Planting: pot soil can choose peat soil, sand and slag mixed according to the ratio of 2 ∶ 1 ∶ 1, a layer of ceramsite is added to the surface of the basin soil to prevent the basal leaves from coming into contact with the soil to cause decay. Once rot is found, the basal leaves should be removed and air-dried or coated with sulfur powder.

Watering: the growing season of the magic knife should ensure sufficient water and keep the basin soil moist, even in summer and winter, the basin soil can not be in a long-term dry state, because the fibrous root of the magic knife is very fine, and it is difficult to restore the absorption function once it is drought. this will cause the leaves to lose water and become soft, and in serious cases, it will lead to plant death.

Fertilization: fertilize once a month, using diluted cake fertilizer or 15-15-30 special slow-release fertilizer for potted flowers.

Pruning: if the growth of the magic knife is too high, you should set up a support or pick the heart, depress the plant shape, and cut off the end branches for cutting propagation. If the leaves of the stem of Shendao are found to fall off, or when the plant can not stand upright, the upper part of the plant should be cut off together with the leaves, so that the survived plant will grow stronger and more ornamental, while the mother plant after decapitation will give birth to many young plants. can be used for reproduction.

Diseases and insect pests: the miraculous knife mainly harms the fleshy leaves caused by Botrytis cinerea. At the initial stage, it is sprayed with 50% methyl topiramate wettable powder 500 times. Indoor ventilation is not smooth, there will be whitefly harm, with 50% fenitrothion EC 1500 times liquid spray.

Reproduction: divine knife is commonly used for cutting and sowing propagation. Cuttings, choose full, tall and straight leaves, often cut a short stem, slightly dry and then planted in the sand bed, about 15-20 days can take root. The leaves can also be cut into blocks 5-6 cm long, and after the incision is dry, it is placed flat on the moist sand surface, rooting and growing new branches from the healing place in about 20-30 days. Sowing was carried out from April to May in spring and germinated in about 10-15 days, and the seedlings grew faster.

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