Hope your having a great day! Anyway, I am having these issues with my zucchini, the leaves are turning yellow around the edges, and then brown later on. I have tried google to no end. I have added already, lets see, epson salt, pool salt, potassiam, chealted iron, and I think that is it. Do you think I need to add some liquid kelp or seaweed?
A picture for those that like visuals:
Thanks a lot!!