That plant surely has a lot more than 2-3 weeks to go.Its an auto plant with 2-3 weeks left, thanks rose!
These auto's mature pretty quick. I was getting burned tips on all of the plants, and this one was heading downhill, I up'd the nutes that didn't help, so I tried for a flush. Here is a quick updated pic, seems to still be putting on weight..That plant surely has a lot more than 2-3 weeks to go.
Are you sure the other plants had nute burn and not a deficiency of some kind. What and how much have you been feeding them?
Even with a little nute burn, I do not flush my plants. I only flush for very severe problems.