The first step is choosing the right container. In this case, choose one about eight inches in diameter with plenty of drainage. You can choose whether you want to traditionally water or try bottom watering — either way is fine with cilantro, as long as it has plenty of drainage. Next, choose potting mix for indoor herb growing. It’s important to get the right kind so that it holds the right amount of moisture. Typically, it will be a mix of compost and vermiculite. Fill your container to about an inch and a half from the top with the potting mix.
The day before planting, put the seeds in a bowl and cover them with water. Soak them for about 24 hours to quicken germination then drain just prior to planting. The next part is important. Plant three seeds in a triangle in the middle of each eight-inch pot, about 1/4-inch deep. Cover them with a scattering of soil and then lightly mist the surface of the soil with a spray bottle. You can cover them with plastic wrap until they sprout.