DoctorDanswered grow question 23 days ago It sounds like you've been dealing with a challenging situation. Given that your plant is about 7 weeks into flowering and has experienced drying out and nutrient burn, here’s my best informed guess:
Assess the Damage: Since the plant dried out and got burned, it might be too stressed to recover fully. If the damage is extensive and the plant isn't bouncing back despite your efforts to flush it, it might be best to go ahead and harvest.
Check the Trichomes: The best way to determine if your plant is ready for harvest is by checking the trichomes. If most of the trichomes are milky white with some turning amber, your plant is likely ready for harvest. This will ensure you're getting the best potency and quality from your buds. If the trichomes aren't quite ready and there are signs of recovery, you could give it a few more days and provide optimal care with proper watering and balanced nutrients.
Based on what you've described, if the trichomes are at the right stage, harvesting now might be your best option to prevent further deterioration. If not, and you see some potential for recovery, a few more days might help.
Good luck with your grow, and I hope this helps
Cheers,