Size doesn't matter, when it comes to these ladies. Maturation is when the farmer gets all itchy and flush, then decides to go on a herbivorous rampage.Then, with lettuce in his/her teeth finds a sharp object and gets brutal with the living weeds. Really a Cannabis plant is mature when the trichome head is cloudy (apposed to being clear). C. sativa takes over 100 days C. indica takes around 60 days. however, do to mans intervention in breeding cannabis, there are all sorts of variations in time. Other factors are at play too. For example: temperature can affect maturation time. hope this helps. Actually, do you know what I have found to help immensely? reading the stickies atop each section of interest in this here forum.