I have a gardenia that has lost a bunch of leaves that turn slightly yellow, then brown and fall off. We brought the plant indoors a month or so ago as we have every year. It has been a great plant with probably 25 blooms on it at one time last summer and probably has outgrown its pot. I have given it acid and keep it well watered but I think not overly so. It gets good light during the day.
Should I try to repot it to a larger pot now. It has significant green but in general does not look good.
I am afraid it is on its last legs.
any suggestions.

thanks for your time

gardenias are heavy feeders