Regular cannabis seeds are completely natural cannabis seeds that have not been chemically altered or genetically modified in any way. They are pure, stable genetics, bred from male and female parents and they produce approximately 50/50 male to female ratio.
Most cannabis growers generally want feminized marijuana seeds, while many breeders and some experienced growers may choose to use regular seeds for specific purposes. Regular cannabis seeds offer the same genetics and can often do a better job of retaining the best features and genetics of each parent plant.
One advantage of these regular cannabis seeds is that once the male plants are removed from the grow (usually a quick and easy process) the remaining females will be strong and very stress-resistant. It is very rare, in fact almost unheard of, for true females to start displaying hermaphroditic tendencies, even towards the end of the flowering period.
So if you are looking for marijuana seeds with the most vigor, hybrid cannabis plants grown from regular seeds are usually much more resilient and tough enough to withstand any fluctuations in the growing environment.