When is a good time to start flushing

Flushing is a bit of a hot topic. Some people do it, some don't. I am one who does not believe in the methodology behind flushing. But I respect people who do like to do it. If you want to start flushing your plants, aim for 1-2 weeks before your chop. Just water them with PH'd water till runoff if achieved and your good to go. their are products desinged to help remove excess salts in the flush and this might be something your interested it. From other questions like this that I've read, most people just use water. As for vendor guided timelines of when to harvest, They are more or less suggestions, you have to go off of what your plant is telling you. They are normally correct in a ball park range sense. Best to check your trichomes for a more accurate indicator of when its ready. I like a little bit of amber 10% some like more, upwards of 30%. More amber=more sedative couch lock. I think that's because the THCV turn into CBN Best of Luck