The glazed ceramic container is about 4" tall. The tree itself is about 6" tall.
From my 11 months of experience so far- brown leaves occur when I put it in direct sun for too many hours a day. If they are turning a dark green they are fine and just not in flowering stage again. If they are brown Id try and move it somewhere with about 1 less hour of direct sun and see if that lightens up the leaves.