I do my best to keep each post as succinct as possible. To grow marijuana plants it’s an absolute must to know the difference between male and female plants. You DO NOT want male plants. What you want is the flower (buds) of the female plant. So how do you tell the difference between a male and female plant? Like most (not all) other organisms males have the balls when growing. Females will have white (for the most part) hairs. To get a better idea of how to tell the difference see the below photos.
You’ll generally be able to tell the sex of your plants between the third and fourth week. If your plants form the balls get rid of them unless you want seeds or are cross pollinating your plants. To guarantee female plants it’s best to purchase seeds from a reputable seed bank. One of the best places to buy feminized or auto-flowering seeds online is I Love Growing Marijuana.