If you want to grow the plant to its fullest potential, you should only put one seed in each pot. The problem with planting more than one seed in a pot is that there will be competition for nutrients and water between the two plants, leading to stress and poor growth. However, if you’re growing cannabis for fun and don’t care about the quality of your harvest, then it’s fine to put over one seed in each pot. When you grow over one plant in a pot, it’s called “sowing”. Sowing is when you plant multiple seeds in one container (usually a bag) so that they can all grow together.