Why would an MJ plant sprout a leaf with one single leaf sicking straight out? All the other have 7 or 5 blades per leaf. What would cause just one blade to come out?
It can happen if you have an irregular light schedule. It will normalize if you give it a regular schedule... Probably other things that can cause this too, but I don't know what that would be. It has happened to me too, but it didn't seem to effect the plant that much. Last time it did this, it was a plant that was LST'd as hell, so after a while in flowering it started growing some leaves like that and some other weird leaves too.
some are in veg about a month old, 12-14 tall. The others are in flower with about 2 weeks to go. same issue on both. I thought maybe it was a PH problem. Not sure.