The seeds of andrographis paniculata are small, wrinkly and square-shaped. Their color is a pale brownish hue. If you taste an Andrographis paniculata seed, you will notice that, like the rest of the plant, it is strikingly bitter.
Andrographis paniculata seeds grow inside the plant's fruit, which is oblong and about 2 cm, or 3/4 inch, in length. The seeds are very small and there are a number of them in each fruit.
Andrographis paniculata plants have both male and female sex characteristics, so they are able to reproduce themselves. However, people have also been sowing Andrographis paniculata seeds in Asia for years, dispersing them during May or June. The seeds also are self-sowing, which has made the plant extremely common throughout India and now in other regions of Asia as well.
The entire plant is cultivated, and the leaves and roots are then used to make medicinal extracts. Seeds are saved to sow again the next year.