yan402answered grow question 5d ago Hey growmie, that ain’t windburn. That’s nute burn, crispy tips, brown edges, it’s textbook. Especially since you said it started after you added PK 13/14 it's pretty clear she didn’t like the boost.
One plant reacting like that means she’s just more sensitive. Could be uneven runoff, salt buildup in that spot, or just a picky pheno. Happens.
You’re in late flower, so it’s a good time to ease off the feed anyway. Either give a couple low-feed waterings or flush lightly if you think the buildup’s bad.
She’ll still finish ok. Just don’t push her or she’ll crisp up worse and the buds might suffer for it. Good luck bro 🤞🍀♥️✌️