Just A Question

i see pic of people with their trees all bald for a litle while before they cut them down is their a reson for this? and how do i go about knowing when to harvest if i dnt have a scope?

yes, but it's not a simple answer. just know that half the time it's normal.
knowing if its an indica or sativa will help you decide. just look it up on attitudes seed finder search.
then look at some pix of peoples finished plants here. ez