plantladylin said:It could be my old eyes but your plant does not look like ginger Variegated Shell Ginger (Alpinia zerumbet 'Variegata') to me but rather Stromanthe (Stromanthe thalia 'Triostar') Lovely plants but I can't offer growing advice because I've never been able to keep one alive for long.
WillC said:Your Alpinia zerumbet is responding to the light source. Before you purchased it, it was getting light from overhead and the leaves oriented themselves horizontally to maximize their ability to receive light. In your home, the light is mostly from the side, so the leaves are orienting more vertically to catch the light. This is not a cause for concern, yet.
I say yet because it appears that the location that you have it in is too far from the nearest window. Although this plant does not require a lot of sun falling directly on its leaves when indoors it must be within a few feet of a sunny window so that it gets lots of very bright indirect light. Moving it closer to the window won't have much effect on the leaf orientation, but it is essential for the long-term health of the plant.
It is still very healthy and you have not waited too long to improve its light. It is good that you did not repot it and that you are keeping the soil damp. Just move it closer to a window and it should be fine.
The small blemishes are not a concern. They appear to be physical damage and not a sign of pests or any disease.
WillC said:Lin's young eyes are very sharp and she may well be correct that this is a Stromanthe.