When is the best time to plant periwinkle? Analysis of the best planting time of periwinkle and its precautions

Catharanthus roseus is a kind of flower that combines ornamental value and medicinal value, and its beautiful appearance is very popular in daily life, so when is Catharanthus roseus best? The following editor will analyze the best planting time and matters needing attention for Catharanthus roseus in detail.

First, the suitable planting season

In fact, the most suitable season for planting Catharanthus roseus is in spring and autumn. In spring, the planting time is from March to May, when the temperature is generally maintained at about 20 to 25 degrees. Autumn is September to October can not be advanced, because the temperature is too high before September, which is very disadvantageous to the flower bud germination of Catharanthus roseus.

Second, spring and autumn

In fact, the planting of Catharanthus roseus is carried out in spring and autumn, because the temperature and environment of these two seasons are more conducive to the root growth and germination of Catharanthus roseus, because the temperature in these two seasons is not high. It won't burn Catharanthus roseus because the temperature is too high.

Third, the time of planting in spring

When planting in spring, you can choose March to May, because the temperature is between 20 and 25 degrees, but if you want your Catharanthus roseus to blossom early, you can sow it in the greenhouse.

Fourth, the time of planting in autumn

The second season is autumn, the specific time for autumn planting is between September and October, when we plant in autumn, it is best not to plant in advance, because the temperature is very high before September, which is very disadvantageous to the sprouting of Catharanthus roseus.

Matters needing attention when planting

After we sow, Catharanthus roseus will sprout in about 2 to 3 weeks. At this time, it can not be exposed to direct sunlight. When it grows three true leaves, it can be transplanted into the pot. In the later stage, attention should be paid to watering, fertilizing and replenishing nutrients.

The best planting time of Catharanthus roseus is in spring and autumn, but in order to improve the survival rate, you need to pay attention to planting skills. The above is a detailed analysis of the best planting time of Catharanthus roseus and matters needing attention. I hope it will be helpful to the growers.

When to sow Catharanthus roseus (a few months) the florescence of Catharanthus roseus

Flowers and plants all have a suitable time for its growth and germination. under such time conditions, the natural environment can provide the temperature, light and water that plants need. So when we grow at home, we also need to consider some of the growth laws of plants formed in nature, in order to make our breeding process more smoothly.

When does Catharanthus roseus sow

Sowing around March to May in spring, the temperature is the best between 20 and 25 degrees Celsius, and generally germinates at 14 to 21 days after sowing. Seedlings can be cultivated in early spring and can be cultivated in a warm spring.

The florescence of Catharanthus roseus

The flowering period of Catharanthus roseus is very long. Basically, when Catharanthus roseus blossoms, it begins from April to May. It usually lasts quite a long time. It blossoms continuously from spring to autumn, and can even blossom all year round. So it is called daily spring.

However, a single flower of Catharanthus roseus does not last long. It usually takes five days for a single flower to bloom.

Fertilization methods of Catharanthus roseus

1. What fertilizer should Catharanthus roseus apply

Catharanthus roseus is not resistant to waterlogging, most afraid of soaking in flowerpots, fertilization should also use some water-soluble fertilizer, once every seven to ten days, to the cold winter to relatively reduce the amount of fertilizer. It mainly depends on what medium the soil is, if the general soil can be mixed with compound fertilizer as base fertilizer when potting, and water-soluble fertilizer can be added when the plant shows that it needs topdressing.

2. How to fertilize Catharanthus roseus

In the seedling stage of Catharanthus roseus, it will undergo a bud core removal operation, and then begin normal fertilization, that is, the above mentioned seven to ten days for a cycle of water-soluble fertilizer. When the flowering period begins, the fertilizer is mainly organic fertilizer, supplemented by compound fertilizer, added once a month, which can not only ensure the bright flowering, but also prolong the florescence of Catharanthus roseus, and achieve the maximum ornamental value.

Pruning Catharanthus roseus

1. Pruning methods of Catharanthus roseus.

Catharanthus roseus is a herbaceous plant, suitable for potted plants, but it should be noted that its plant should not be allowed to grow too high, so as not to affect indoor decoration and ornament, so after surviving in the pot, it needs to be picked several times to promote Catharanthus roseus multiple branches and blossoms, and the residual flowers need to be cut off after flowering.

In addition, it is also necessary to prune insect branches and strengthen fertilizer and water management. When pruning in winter and summer, insect branches and dry and dead branches should be re-pruned. At the same time, it is also necessary to strengthen fertilizer and water management, promote Catharanthus roseus to shoot, renew the crown and restore the tree momentum.

2. the heart-picking work of Catharanthus roseus

In addition to normal fertilizer and water management, the focus is on heart extraction and prevention and control of stem and leaf rot in the rainy season. The purpose of heart picking is to promote the branching of Catharanthus roseus and control the florescence at the same time. Generally speaking, when there are 4 or 6 true leaves, you begin to pick the heart, and when the new shoots grow 4 or 6 leaves, you should pick the heart for the second time, and it is best not to pick the heart more than 3 times.

The last heart pick has a direct impact on the flowering period. generally speaking, the last heart pick in autumn is 25 days away from the early flowering stage, and the last heart pick in summer is 3-5 days earlier than in autumn.

Catharanthus roseus can not be plucked, but in order to get a better plant type, it is best to pick the heart once or twice. For the first time, there were 3-4 pairs of true leaves, and the second time, 1-2 pairs of true leaves were left in the new branches. In the process of cultivation, regulators can usually be used, but paclobutrazol can not be used.

The reason why Catharanthus roseus is called Catharanthus roseus should include the reason for its long flowering period. Catharanthus roseus blossoms from the end of spring, and then it can bloom all the year round, just like it is permanent in spring. However, in order to maintain a long flowering period, the necessary procedures and methods of maintenance must be indispensable.

Efficacy and function of Catharanthus roseus and taboo value of Catharanthus roseus Medicinal use

Catharanthus roseus is known as the four seasons plum, which is a kind of flower plant with high ornamental value, and it is also very suitable for family planting. However, if a flower is to be raised at home, it can definitely meet some people's needs, such as having very beautiful flowers for viewing or good for the human body. And Catharanthus roseus is a combination of the two.

Efficacy, function and taboo of Catharanthus roseus

1. The efficacy and function of Catharanthus roseus.

Catharanthus roseus has a good effect on cooling blood pressure, calming and calming the nerves, and has a good effect on the treatment of hypertension and burns. If you have malignant lymphoma, or chorioepithelial cancer and other rare cancers, consider using Catharanthus roseus.

2. Taboo

The main toxicity of vincristine is to inhibit the function of bone marrow, and vincristine is more toxic to nervous system and gastrointestinal tract, such as abnormal sensation, disappearance of knee reflex, myasthenia, neuralgia, alopecia and abdominal colic, intestinal obstruction and so on. however, leukopenia and thrombocytopenia are much lighter than vincristine.

Medicinal value of Catharanthus roseus

1. Clearing heat and detoxification

Catharanthus roseus clearing heat and detoxification, smashing fresh leaves and external application has a better therapeutic effect on sores, swelling, burns and scalds.

2. Calm down and calm the mind

Guangzhou Army's Handbook of commonly used Chinese Herbal Medicine: "calming the mind, calming the liver and lowering blood pressure." For high blood pressure.

3. Depressurization

Intravenous injection of total alkaloids has antihypertensive effect on anesthetized cats and rabbits, and the blood pressure decreases rapidly, which is different from the slow hypotension of total alkaloids, and it is accompanied by deeper respiration and larger amplitude at the same time. Vagus nerve transection or atropine did not affect the antihypertensive effect.

4. Anti-cancer

Catharanthus roseus contains more than 70 kinds of alkaloids, which is a natural medicine for the prevention and treatment of cancer. Among them, vincristine and vincristine are effective in the treatment of malignant tumors such as lung cancer, lymphosarcoma and childhood acute leukemia.

How to raise Catharanthus roseus in pots

1. Soil

When planting Catharanthus roseus, we must not choose saline-alkali soil, at the same time, the soil should have good drainage and air permeability.

2. Lighting

Catharanthus roseus is more like the sun, placed in a sunny environment for maintenance, is very beneficial to flowering, but also can effectively prevent overgrowth.

3. Temperature

The most suitable temperature for the growth of Catharanthus roseus is between 20 and 33 degrees. When the temperature drops to 15 degrees, Catharanthus roseus will stop growing. If the temperature is below 5 degrees, it will freeze Catharanthus roseus.

4. Fertilization

If the application of base fertilizer is not done well during planting, water-soluble fertilizer should be applied every 10 days during the growing period. But it is necessary to reduce the amount of fertilizer in winter.

5. Watering

Catharanthus roseus is afraid of stagnant water and waterlogging, which will make its roots rot. Therefore, we must pay attention to watering, do not dry do not water, water thoroughly.

Sowing methods and points for attention of Catharanthus roseus

I. the sowing method of Catharanthus roseus

1. Time of sowing

Sowing in March-May in spring, the temperature is the best between 20-25 degrees Celsius, usually germinating 14-21 days after sowing. Seedlings can be cultivated in early spring and can be cultivated in a warm spring.

2. Sowing soil

When peat and perlite are mixed at 3:1, rotten leaf soil can also be used. The use of fertile, loose, well-drained sandy soil or humus soil, barren soil, but not saline-alkali soil or clayey soil with poor permeability will hinder plant growth, yellowing leaves and not flowering. Before cultivation, use 500-600 times carbendazim solution to sterilize and place it facing south and sun.

II. Points for attention

1. When sowing, cover with a thin layer of sand, do not let the sun shine directly on the seeds, use a fine spray pot to pour enough water to Catharanthus roseus, cover with a film or grass curtain to keep the soil moist, in order to adapt to the environment needed for its germination.

2. Catharanthus roseus germinated 14 to 21 days after sowing, and the newly grown seedlings could not be exposed to strong light for a long time, and 2-3 hours of shade were needed at noon when the temperature was high. Seedlings grow to 5 cm, grow three pairs of true leaves can be potted, grow 6-8 pairs of true leaves can be planted. Planting flower beds in May, watering every 3-5 days, and proper fertilization are conducive to the growth of Catharanthus roseus.

As mentioned above, Catharanthus roseus, as a kind of traditional Chinese medicine in China, has a very good curative effect. However, this effect requires the processing of periwinkle to have an effect, not the fresh ones picked directly. In addition, it should be noted that Catharanthus roseus is poisonous to avoid eating by mistake and produce adverse symptoms.