How to sow Catharanthus roseus-sowing method of Catharanthus roseus

Catharanthus roseus has a long flowering period, beautiful colors and beautiful posture, and with the development of modern technology, the varieties of Catharanthus roseus cultivated by people are becoming more and more beautiful, which is very suitable for indoor potted ornamental plants. Raising a pot at home may have an unexpected effect.

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.

Catharanthus roseus is very popular with flower friends because of its many colors and long florescence. 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.

Sowing time: (more) spring and summer

Germination temperature: 15-25 degrees

Suitable temperature for growth: 10-30 degrees

Catharanthus roseus is often propagated by sowing. When sowing in early spring, the seedlings grow slowly in the early stage, and when the seedlings grow to 3-4 true leaves, they begin to divide and transplant, and they can be planted when they have 6-8 pairs of true leaves. In May, the flower beds are watered every 3-5 days, and the flowers will be leafy if they are properly topdressing with phosphorus and potassium fertilizer. The following is to introduce the methods of sowing and raising seedlings of Catharanthus roseus.

1. Sowing time

Catharanthus roseus is usually sown from March to May in spring. Generally speaking, Catharanthus roseus blossoms early and can be sowed and raised in greenhouse in early spring. Under the environment of 20 ℃, the warm spring is moved to the open field.

2. Sowing medium

The medium is best prepared with peat + perlite according to 3 ∶ 1, or rotten leaf soil. Pour through (sterilize) with 500 to 600 times carbendazim solution, and place the seedling utensils facing south and facing the sun.

3. Main points of sowing

Sowing should be covered with fine sand, do not make the seeds see the light directly, use a fine spray pot to pour enough water, cover with a film or grass curtain to keep the soil moist, and seedlings can emerge in 7 or 10 days.

4. Seedling emergence management

After the emergence of Catharanthus roseus seedlings, 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).

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.

Time: 2019-06-09 Click: