When and how to plant balloon flowers?

Balloon flowers are usually planted in spring or winter. The sowing time in spring is from March to April, and the sowing time in winter is from 165438+ 10 to 65438+ 10 in the following year. This plant has a certain degree of cold tolerance. After experiencing low temperature, the germination rate will be higher, which is also beneficial to its subsequent growth. Other times are not suitable for planting.

First, sowing time

Before you plan to plant platycodon grandiflorum, you should choose seeds to accelerate germination. Choose bigger, fuller and darker seeds. Soak in warm water of 50-60℃, stir constantly during soaking, and filter out impurities. After cooling, soaking in water for 12 hours can improve the germination rate.

Second, select seeds to accelerate germination.

In order to make platycodon grandiflorum grow better, loose and fertile soil must be used as substrate. If you make your own pot soil, you can mix sandy loam, humus and garden soil according to the ratio of 2:2: 1. If you want to make plants grow better, you can provide some nutrients and add a proper amount of bean cake powder to the soil as base fertilizer.

Third, the pot soil preparation

Sprinkle platycodon grandiflorum seeds mixed with sand on the soil surface, and then cover with a layer of pot soil according to the thickness of invisible seeds. After sowing, water thoroughly, put it in a warm and dark place and keep good ventilation until the seeds grow into seedlings. When the seedlings grow up, they can be transplanted.