I have had this particular Camellia Sasanqua for over 10 years now. A year ago it stopped flowering and lost a few leaves, which was odd as it had looked after itself for the time I have had it, and I assumed it had outgrown its pot, so I found a suitable location and planted it into the ground. Soon after it started flowering again and all was good. Then not long ago it started to leaf drop again, more severely, so I decided to put it back into a larger pot so I could control its environment better, and again it started with the new growth (no flowers) but it looked like it was improving. Now it is at its lowest point, you could count the leaves on it. It is planted in a half wine barrel, I've drilled drainage holes in it (raised) and I've moved it to a location with no harsh afternoon sun, but will get sun just past midday. It's also planted in Osmocote camellia soil mix.
There's no visible signs of disease I can identify and the stems are still green inside on the branches with no leaves.
The leaves seem to go hard (still green) before falling off
Does any one know what I can do to revive it? Thanks in advance 🙂