How to sow periwinkle

The sowing time of Catharanthus roseus: sowing around March to May in spring, the temperature is the best between 20 and 25 degrees Celsius, usually germinating in 14 to 21 days after sowing. Seedlings can be cultivated in early spring and can be cultivated in a warm spring.

Catharanthus roseus sowing-soil: 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.

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

How to sow Catharanthus roseus planting skills

Catharanthus roseus, also known as calendula, has many flowers and a very long flowering period, which can bloom from spring to autumn. If you are also a flower grower, let's take a look at the recommendations we share below on how to sow Catharanthus roseus.

How to sow Catharanthus roseus

How to sow and raise seedlings of Catharanthus roseus

Good flowers need good seedlings, the seed shape of Catharanthus roseus is not large, itself is a perennial four-season flowering variety. Therefore, the conditions for raising seedlings are relatively random, and the recommended time for raising seedlings is from January to April. After sowing and raising seedlings into the seedling hole, make sure that the temperature is maintained at about 20 degrees, so as to ensure the success of seed seedling.

Second, how to sow Catharanthus roseus-- move the pot

After the burrow seedlings are planted, they can be transplanted to the pot when the leaves grow to two or three true leaves. The operation of the basin had better be in place, so as to avoid the second change of the basin.

Third, how to sow Catharanthus roseus-- light

Catharanthus roseus is a positive plant, so its flowering and growth need enough sunlight to ensure that the plant will not just grow leaves. On the contrary, lack of sunlight can cause the leaves to grow badly.

How to sow Catharanthus roseus-- temperature

Catharanthus roseus is sensitive to temperature and temperature, especially to low temperature. If you want to plant Catharanthus roseus, then temperature control is also necessary. If Catharanthus roseus is planted in the Yangtze River basin, consideration can be given to heat preservation treatment, because Catharanthus roseus will no longer grow at a temperature below 15 degrees Celsius. How to sow Catharanthus roseus because of its many colors and long florescence, it is very popular with flower friends. Catharanthus roseus is mostly sown and raised seedlings, of course, it can also be raised by cuttings, but the growth of cuttage seedlings is not as strong as that of sowing seedlings. Generally speaking, the seeds of Catharanthus roseus are purchased directly, and some of them are kept by themselves. Here, let's talk about the time when Catharanthus roseus collected seeds, and the ripening period of Catharanthus roseus fruit is different due to different flowering time, so the seeds should be picked as they are ripe. After the fruit is ripe and the color turns black, the skin is easy to crack and lose the seeds, so it is necessary to collect seeds in time. When you see the pericarp yellowing and can vaguely reflect the black seeds inside, it should be harvested. 1. The sowing time of Catharanthus roseus is usually about March to May in spring. Generally speaking, Catharanthus roseus blossoms early and can be sowed and raised in greenhouse in early spring. Under 20 ℃ environment, the warm spring is moved to the open field for cultivation. 2. Sowing medium: the medium is best prepared with peat + perlite according to 3 ∶ 1, or rotten leaf soil can be used. Pour thoroughly (sterilize) with 500 to 600 times carbendazim solution, and place the seedling utensils facing south to the sun. 3. Sowing should be covered with fine sand, so as not to make the seeds see the light directly. Pour enough water with a fine spray pot and cover with a thin film or grass curtain to keep the soil moist. Seedlings can emerge in 7 or 10 days. 4. Management after emergence: after the emergence of Catharanthus roseus, gradually strengthen the light. Because Catharanthus roseus seedlings grow slowly and grow faster when the temperature rises. It is necessary to plant seedlings in time (that is, to get rid of weak seedlings, reasonable seedlings help to make the seedlings grow strong).