1、 Sowing time

1. Spring: the sowing of Catharanthus roseus is best carried out in spring, probably from March to may, because the temperature at this time is more suitable for seed germination. If you want to make it blossom earlier, you can choose to sow in the greenhouse and keep the temperature to about 20-25 ℃

2. Autumn: sowing in September October in autumn is also possible, but try to avoid early autumn. At this time, the temperature has not begun to decline, and higher temperature will affect seed growth

2、 Basin blasting method

1. Replenish water: to make it burst, you need to replenish the required water. Watering should see dry and wet. Pay attention to that there is no excess water in the basin. It should be watered thoroughly. The soil is slightly wet but there is no ponding

2. Ensure light: usually receive enough light every day, and do not breed in too shady places. Insufficient sunlight is easy to grow in vain and affect the explosion of the basin. Even indoors, you should see more sunshine. Don't grow in an environment without light for a long time