This kind of flower blooms early. It usually blooms in April. So those who don't rush to plant in early spring can choose to wait until autumn, because the temperature in autumn is also more suitable for their growth, they are more cold resistant, and the most suitable temperature for budding is 15-20 ℃. But if you choose to start in spring, it will bloom in three months.
Before sowing, the substrate must be selected well. The selected substrate must have good drainage capacity, because this kind of flower should not be waterlogged. If the drainage capacity is not good, it is easy for their roots to rot, or even cause the whole plant to die. When preparing the substrate, a little fertilizer can be added, so that they will not grow badly because of too little fertilizer.
The seeds after vernalization can be directly placed in the prepared nutrient soil, but the nutrient soil should be infiltrated in advance. The seeds can be sown directly on the surface, instead of being buried too deep. Buried too deep in the soil will definitely affect their germination speed, or even make them unable to germinate.
After sowing, a layer of plastic cloth should be covered on the substrate, which should be transparent and not too thick, similar to the preservative film. Mulching can not only keep temperature, but also keep humidity. When the seedlings grow two real leaves, the film can be removed. However, the surrounding environment should also be kept at about 20 ℃.
If the aphid is eroded during planting, some measures should be taken. If there are not many insects just found, you can take them off by hand, and then spray them with proper medicine.
