Blueberry plant went through a shock. Why?
Hi, I potted a blueberry plant about two months ago that I had bought from a nursery. I used potting soil only in a 7 gallon pot. The plant was doing well and sending out new shoots and even the blueberries were ripening. Then, suddenly one day, most of the top shoots, including new growth, began to wilt. The only thing I can correlate was that I had gotten slack with watering for a couple days prior to this.
This made me realize that I had to hasten the task of acidifying the soil. I added a sulphur based acidifier and checked that the pH had dropped to the 6-7 range in a couple days. Then, the plant went into a shock. The leaves in the top shoots began to burn inwards, as depicted in the picture.
The plant is now recovering, and is once again sending out new growth. But I'd like to understand what made the leaves and top shoots burn inwards. Any comments or advise would be most helpful.