年表作成・共有サービス - pastport

It really matters that you can distinguish between female and male weed plants if you want maximum bud production and good potency of the crop. Although it's not possible to determine the gender of a cannabis plant by just looking at it when it's only a seed, there are more reliable ways to identify, like by examining your plants during the first four weeks of the flowering stage, also known as the pre-flower stage.

https://heyabby.com/blogs/articles/female-vs-male-weed-plant