Mimosa (RQS) | First Time Grower

(Day 70) She has started to develop a deep purple color and I can see a lot of her Trichomes have shifted color. This makes me wonder if I should cut her down within the next 7-10 days. Please let me know what you guys think. I originally had planned for 2-3 more weeks. I will stop feeding nutrients in about 3 days and will only give her ph-adjusted water from then on. (Day 73) Today I defoliated her by removing basically every large fan-leave. This should hopefully set her up well for her final days and make trimming a lot easier. I removed the ScrOG-Netting aswell since she can support her own weight. Also today is the last time she will be fed. Starting tomorrow she will only be given ph-adjusted water.