Hello there, I am just new to this site, so I hope that this is not a silly question or anything:

I have a small Citrosa plant (markes as a Bonsai) which gives off a lemon scent.

Recently, due to my own lack of knowledge (and just a bit of neglect) the leaves and stalks have started to die and fall off, starting at the bottom and moving upwards, leaving a bare stem, which has become slightly hard at the bottom.

I just want to know what I should do to try and revive it, and once I have done so, how I should better look after it as regards to location, temperature, food etc.

Like I say, I hope this isn't a stupid question or that I have not been specific enough.

Hope you can help.