Harvest

It depends on the individual plant and the specific growing conditions, not the packet, which is only a rough guide based on (usually) best outcomes. Personally I start a flush when there are about 95% brown pistils and harvest about 2 weeks later when there are 98-99% brown pistils. This will be when your plant is at its peak THC levels and it will also co-incide with the often quoted "10-30% amber trichomes" zone, without having to look too closely. This is also a simple and fool-proof method for new growers to judge their harvest timing on, as it is an easy visual indicator that is hard to muck up and a safe guide. Hope this helps, Organoman.