We bought a 5 gallon gardenia and planted it. It did well for a few months then went south. We later read about where we planted it and figured the hot sun of our summers cooked it. But it survived, even through a few freezes during our last winter. AND... it even bloomed a few flowers this spring, but all the leaves are yellow and it doesn't have it's dark green lush leaves it had when we planted it. I included a picture of it from today. Is it getting enough water? Is it getting too much water? I used miracle grow on it with a hose feeder twice in the last two months but there was no noticeable change. Is it too much sun? Too much heat? Thank you for your time and hopefully advice!