How to plant Platycodon grandiflorum seeds?

Platycodon grandiflorum, also known as grassland gentian, Platycodon grandiflorum, etc., is a perennial plant of the Gentianaceae family. It is commonly sown and propagated, and its seeds are very small, usually about 10,000 seeds per gram, so the seeds of Platycodon grandiflorum are mostly coated. The seed emergence rate of coated seeds is higher. Let's take a look at how to plant Platycodon grandiflorum seeds.

Seedling soil finishing

Platycodon grandiflorum seeds should be prepared with seedling soil or seedling block before sowing, and separate small pot seeds can be used as far as possible for convenience, so as to avoid the phenomenon of overgrowth caused by different germination time. Then fill the soil and spray it with a spray can, and then sit in a larger basin, so that the soil can be completely drenched.

Sowing method

The seed of Platycodon grandiflorum is very small, like dust, even if you take a breath, it seems to be blown away, so you must be careful, it is best to have something underneath and spread a layer of white paper, so that even if you drop it accidentally, you are not afraid to find it. Then there is a toothpick with a little bit of water, click on the seed, it will stick to the toothpick, and then it will be much more convenient to plant in the nursery basin. It should be noted that the seeds of Platycodon grandiflorum do not need to be covered with soil, just put them directly on the surface of the soil.

Moisturizing after sowing

After the seeds of Platycodon grandiflorum are put away, if there is a lid on it, you can cover it with moisturizing. If you don't have a lid, you can cover it with a layer of cling film used at home, so that you can maintain humidity and open it for air every day. You can also spray water with a very small spray can every day, and if you feel you don't have a good grasp, you can sit in the basin to keep the humidity. But remember, don't put it in it 24 hours a day, just spray it gently or sit for a while every day. Seeds also need to breathe, soaking for a long time will spoil the seeds, but not easy to germinate.

Germination management

Platycodon grandiflorum seeds usually germinate about 15-20 days after sowing, and later ones also germinate in 30 days. Be patient, don't give up on them, and keep them humid until they sprout. After germination, there is no need to cover the lid, you can scatter the light, but do not expose yourself to the sun, because the newly sprouted seedlings are very fragile, and it is easy to dry them to death. At this time, you don't have to put it in the basin every day. You can put it after a little bit of dryness. Just sprout as gently as possible, because the seedlings are very small and will fall as soon as you spray them with force.

Planting management

1. Illumination: tangerine pedicel flowers are sensitive to light, and long-day sunshine is very beneficial to the growth and development of Platycodon grandiflorum, which is conducive to stem and leaf growth and flower bud formation, and achieves the purpose of early flowering. Generally, 16 hours a day has the best effect.

2. Temperature: Platycodon grandiflorum likes to be warm, the optimum temperature for growth is 15-28 ℃, and the night temperature during the growing period is not lower than 12 ℃. When the winter temperature is below 5 ℃, the leaves are rosette and can not blossom. It can also withstand 0 ℃ low temperature for a short time. When the temperature in the growing period exceeded 30 ℃, the flowering period was obviously shortened.

3. Watering: Platycodon grandiflorum likes wet environment, but excessive water is disadvantageous to the root growth of Platycodon grandiflorum and is vulnerable to diseases. After bud formation, high temperature and humidity should be avoided, otherwise it is easy to cause fungal diseases. At the same time, during the growing period, there was insufficient water supply, weak growth of stems and leaves, and early flowering.