Looks like some nute burn. Too much fert in your soil, methinks.
Hey everyone thanks for the replies!!
I use ednas best potting soil, and I have never had a problem with it in the past.
"Contains Composted Fir Bark, Sphagnum Peat Moss, Redwood Compost, Mushroom Compost, Volcanic Pumice, Earthworm Castings, Washed Sand, Kelp Meal, Bat Guano, Feather Meal, Gypsum and Mycorrhizae.Oyster Shell Lime and Dolomite Lime are added as pH adjusters. A natural wetting agent, Yucca shidegera saponin, has been added to help remoisten the product."
Could it be an overwatering/underwatering problem?
I've got some peppermint growing right near it and its having similar problems too, leaves turning yellow, than browning.
I figure ive got atleast two more days before this baby is a goner. Itd be nice to keep it alive its suppose to be some pretty killer smoke.
Anymore help would be greatly appreciated!