1、 Planting method

1. The first is to collect seeds. We can usually choose some ponds where this plant grows and blooms more. We don't need to salvage it immediately. From September to October, the fruit of this plant will tend to mature. When its fruit turns pale yellow, we can pick the bent and fruited pedicel, and then spread the pedicel and seeds in a cool place to dry. Then we can peel the fruit and take out the seeds

2. If at the time when these flowers are in full bloom, at 9 to 10 a.m., the flowers that have exposed pollen are gently rubbed and contacted on its stigma, they can bear better seeds

3. From late February to early March, soak the full and yellowish brown seeds in water with a temperature of 25 to 30 degrees for 10 days, and then sprinkle the seeds on the water surface to be planted

4. And in this process, keep the ambient temperature at 30 degrees. They will germinate in about a week or two

5. When it can grow 5 to 6 leaves, its leaf poke will expand and have buoyancy. After its seedlings have branched, we can transplant it

2、 Precautions

1. About one plant can receive more than 300 seeds per flower spike, and these seeds are very small, and only one thousand of them weigh 0.4g and appear yellowish brown. These seeds can survive for 5 to 20 years even if they are deposited in silt

2. The adaptability of this plant is very strong. It can grow in reservoirs, lakes, ponds, channels and rivers with slow flow rate

3. Relatively, it is also because of its strong environmental adaptability. It can grow in rice fields, absorb nutrients from crops and affect yield