MYTH: Immature buds won't get you high.
FACT: Even males (and the fan leaves off of them) can get you high. I'd prolly rather smoke the fan leaves off of some White Russian than some buds off of low grade Mexican. THC is present at a very early age and the THC percentage climbs a very steady and gradual slope throughout vegetative and flowering growth. Generally speaking potency is as follows: Large top buds off of females, smaller side buds, then bottom buds, followed by top leaves, middle leaves, then bottom leaves from the growing tips, followed by fan leaves top to bottom. Since male plants lack the female buds, their potency begins in the 'leaves' categories.