Before sowing and propagating, it is necessary to prepare basin soil in advance, because after the soil is prepared, it needs simple disinfection. Sometimes there are some germs in the soil, so we should first spread the soil in the sun and use it after exposure.
After pollination, we can get the seeds of the iron ball. Its seeds are not very small and are not easy to store, so we should sow as soon as possible after harvest. Some seeds may be damaged by insect eggs. If there are such seeds, they need to be selected.
After the pot soil is prepared, the seeds of the iron ball are sown into the soil and covered with a thin layer of soil. In order to keep the soil moist, we should also cover it with a plastic film, or cover it with glass.
After its seeds are sown, the soil should be kept moist to a certain extent, which will be more suitable for seed growth. Maintain the position to have bright light, can't put in the dark environment to maintain