How to plant the seeds of five-petal plum?

Five petal plum, also known as Catharanthus roseus. There are white, red, blue, yellow, pink and other colors, planted in the major gardens of our country. How do you plant the seeds of the five-petal plum?

How to plant the seeds of one or five plum?

Select a place with high and cool terrain, facing south to the sun, and good drainage, and then loosen, flatten and make beds. Sow seeds by sowing in March-May. After sowing, cover with fine sand, pour enough water with a fine spray pot, cover with film or grass curtain to keep the soil moist, and seedlings can emerge in 7-10 days.

Second, how to maintain the five-petal plum?

1. Temperature

Prunus mume can still grow normally when the temperature reaches 35-37 ℃, but when the temperature is below 15 ℃, the growth becomes slow immediately, when the temperature is below 10 ℃, it will appear growth obstacle, and even die from freezing injury. Therefore, in the process of cultivation, the growth temperature should be kept at 20-30 ℃.

two。 Light

Five-petal plum sex like light, high temperature, high humidity, resistant to semi-overcast, not resistant to cold, usually to maintain good light.

3. Water and fertilizer

The plants of Catharanthus roseus are easy to rot after rain, and the areas with more rainfall need to be planted in the greenhouse, and the medium needs to be well drained. For those who are completely artificially cultivated, the water-soluble fertilizers of 20-10-20 and 14-0-14 should be used alternately every 7-10 days with the concentration of 200-250ppm. When the temperature is low in winter, the use of 20-10-20 fertilizer should be reduced. If the ordinary soil is used as the medium, the compound fertilizer can be mixed as the base fertilizer before the medium is put into the basin. When the fertility is insufficient, then apply water-soluble fertilizer.

4. Pick the heart

Coring can be carried out when the seedlings grow to 3-4 pairs of true leaves. the purpose of coring is to make the lateral branches of the plant germinate and make the plant type more symmetrical and plump. Some varieties can not pick the heart, such as "Qingjing" and so on.

5. Diseases and insect pests

We should pay attention to the invasion of diseases and insect pests such as blight, gray mold, gray mold, base rot, aphids, etc., spray chemicals in advance, and remove diseased branches and leaves in time.