When the perilla leaves are mature, some of them will be picked and used up. Some of them will grow old gradually. Don't pull them out in a hurry, and they will grow into small flower buds in a period of time.
When the flower bud comes out, it will produce purple flowers. Don't pollinate the flowers. After a while, the Perilla will grow its own small seeds.
In the late autumn, when the whole branches, flowers and leaves are withered, you can be sure that the seeds inside are ripe.
When the seeds of Perilla are mature, if they are not treated, they will fall into the flowerpot. In the second year, there will be many small perilla seedlings in the flowerpot, which can also be collected for sowing in the second year.
Because the seeds of Perilla are very small, it is generally not recommended to remove the outer layer of bread. You can directly remove the seeds from the branches with skin.
Then collect them, put them in plastic bags or kraft paper bags, store them in dry and ventilated places, and sow seeds in the next spring.
