Is my gardenia dead or alive? I bought two gardenia trees 3 months ago. When I first got them, they were abundant with flower buds and lush green leaves. I brought them home and kept them in the house next to the window and soon the leaves started turning yellow. I put the trees outside and the buds have dropped off and ALL the leaves are dried out and brown. I think the trunk of the tree is still alive. Not sure what to do with the plants. Should I repot them in bigger pots and use acidic fertilizer? Should I trim all the dead leaves off? Is there hope?