Any idea why my basil is black/brown at the edges? - pics attache
I'm pretty new to gardening and I have two different basil plants that have been growing all year in fairly large pots. Pretty much the entire year they have this black stuff around the edges. From there they get yellow and start to go brown/black.
I'm guessing its some sort of fungus? But honestly I have no clue. The new leaves don't have it, but after they have been around a few weeks bamb they get hit.
I am hoping some of you gardening experts can help advise me on what is the problem and what I can do to fix it.