Hey there Andrez Marks ! Some genetics fade, others don't, some phenotypes fade , others don't. Senescence is a beautiful sight, but if your plant doesnt do it, it's not necessarily your fault at all. For sure lack of nutrients makes a plant wilt , but that's not senescence and surely a wilting plant is a bad sign. Two good things can happen when you flush : your plant stays healthy and fades, or your plants stays healthy and doesnt fade. The bad thing that can happen is that your plant is not ready to be flushed and starts to get deficiencies right before the chop. The point is if you time it correctly the senescence should happen shortly after the start of a long three week plain water watering (you dont need to flush flush in soil, just water with plain water for three weeks) . Hope this helps ! 🚀