HelpfulGardener.com

This is my Bonsaii tree. I have had it a little over a year now, I have not really trimmed or shaped it. I live in a dry climate, but have a plant humidifier. It lives indoors with a plant grow light. It is watered once every two days, and has the right soil. Yet the "leaves" are a yellow kind of color. So I was wondering why, and what I can do to fix it.

The pot is too big. Does it have drain holes? The plant looks dead.