For this method, it is usually carried out in spring and autumn, with little sowing in summer and winter.
The general requirement is good drainage, the best bottom hole, other no special requirements.
The specific requirements are good drainage, air permeability and rich nutrients. In view of these requirements, we can choose peat soil or other soil that meets the requirements. In addition, we have to prepare some fine sand for later use.
The principle of selection must be familiar to all of us. It is to choose the seeds that are full and round without damage or moth. After selecting the seed, we have to deal with it as necessary, because it can effectively improve the probability of germination. We have to carry out the relevant treatment of germination, specifically put it in the refrigerator and other places for refrigeration, about two days. Note that the temperature does not need to be too low, about three degrees Celsius.
Put the selected matrix into the container, about 10 cm. After that, mix the seeds with the fine sand we prepared, and then sprinkle them into the container.
Then, adjust some conditions. The first is water. In order to keep the humidity, we can spray some water on the soil. The other is the temperature. It's better to keep it at about 18 to 25 degrees. Also, the light should not be too strong, if it is too strong, appropriate shading measures can be taken
To ensure that these factors are in a suitable state, wait about 25 days, we can see it germinate