Hello plant friends, I need your help! I think my gardenia is sick. I put it in a big pot and it grew well, but now its leaves are turning yellow, its buds are darkening and falling before they even bloom and there are some dark very very small spots on some of the leaves. I'm attaching pictures to the post... Is it a lack of nutrients? A disease ? Mites ? Something related to overwatering or soil acidity? Something else ? Waiting for your opinions!