Ok in all her glory. I might add that i used good potting soil used for roses and like and it may not have needed any nutes too. As i said i used a synthetic nute high in N. Only half strength though. The tips of old leaves are dieing and also these bottom leaves are turning yellow. Here are a few more pics. Hey by the way do any of you watch Big Love? My mrs is addicted and it about some weird polygamist.
I really can't tell much from the pics as they are just too blurry, but if you're confident it's not N, then my next bet would be Mg. It looks like the leaf tips are brown and twisty? Maybe it's an Fe defecieny, but it looks like older growth is most affected.