Feminized cannabis seeds are seeds that are produced by causing the monoecious, or hermaphrodite condition in a female cannabis plant. This is achieved through several methods:
By spraying the plant with a solution of colloidal silver
Through a method known as Rodelization
Spraying gibberellic acid (much less common)
Feminized seeds produce plants that are nearly identical to this self-pollinated (or “selfed”) female parent plant, as only one set of genes is present. This is sometimes referred to as “cloning by seed” and will not produce any male plants. However, most producers of feminized seeds do not go through the lengthy (and costly) process of identifying a completely stable mother plant for seed production. Many, if not most feminized seeds end up being hermaphrodites, which can result in flowers with seeds in them and reduced yields. Most experienced growers will not use feminized seed, and they should never be used for breeding purposes.