Hi, what do you guys think, how long until harvest? I run them on flo 66 days now. The bigger one is Gelato and she had definitely more veg than the smaller one wich is Sensi Skunk.
The most accurate way to determine how mature and ready for harvest they are you must look at the trichomes. The little sparkles. You need to magnify either with a microscope, phone camera or what's best is a jewellers loupe. They are only £5/ ish.
The heads of these trichomes will likely be one of these colours. First they are clear then they go cloudy and finally amber. Peak potency is about when 80% are cloudy . They longer you leave them and the more amber they are will produce a more sedating buzz. Hope that helps