Light stress. The serrations on the leaf point up, and begin to yellow and brown.what symptom is that????
I heard they are pretty tough, they wont be any good for supporting heavy branches, i imagine i wipp either have to stake those or use a trellis if it comes to that. But for early training they are so much easier!Man those clips look a lot easier than trying to run a bunch of strings, ribbons, wires, etc... I might have to look into those once your grow finishes. I'd like to see how they hold up when there is a lot of weight on the branch towards the end.