So what's going on with this? The pictures don't really do this justice, but the leaves on my three Jack blacks are folding away from the light. Only on some of the plant and it's happening on the lower branches as well as the tops. But it's only happening at the ends of the branches closest to the light. The LEDs are a few feet away from the plants, although I don't believe this has anything to do with it considering I had the lights much closer for months with no problems. The pH of soil and water is fine, temp is fine, no bugs, no nute burn. Everything's fine. This only happens for the last 4 or 5 hours of the light cycle, and about 20 mins or so after the lights go off they're fine. This is only happening to the three Jack black strains. All different ages. The Bubba kush, sour diesel/lemon kush and blood orange are all fine. My theory is they're wanting to flower. But other than that I can't figure it out. Any ideas?
They're 260 watt leds and they are about two to three feet away. I have them closer by about a foot over some younger smaller plants that are showing no problems.
well the 20190615_105934.jpg Well, they do fine being that fare away. It's also recommended with these particular leds. I don't know what it is but these leds are intense. Work about as good as a 1000w MH. Either way, I did have them closer but they bleached the leaves. Didn't burn them, just bleached them. But that's when they were about 6 inches away. I had them closer, but when this started I pulled them back in hopes that was the problem.