On one of my month and a half old plants the older bottom leaves are dying or turning brown any ideas as to why. Its an outdoor plant in a 3 gallon pot.
I would bet money it's Nitrogen def. Unless you have a big slug of blood meal in the bottom of your pot you're going to have N def. Add some fish emulsion (mix it according to directions) and I bet she will perk up in a couple of days.
