Regarding blueberries and soil pH, the condition of the plant, specifically the leaves, can be, and should be used as the most reliable indication of soil pH. If the leaves are deep green, and they look generally healthy, then the soil must be OK with regard to pH. It is possible for the blueberry roots, and the associated soil microbes, to create a favorable environment for blueberry growth, even though the pH reading a few inches away is higher than optimum. If an acidic solution is used to lower soil pH, it must be diluted correctly or the shrub will be killed for certain. Using our water, supplied by the city, here in Madison, Wisconsin, it takes 6 fluid ounces of 5% white vinegar added to 4 gallons of tap water, to lower the pH to around 6. I have never put straight vinegar down on any of our shrubs, however, I did spill about a tablespoon of 5% white vinegar on the lawn recently, and it did kill the grass! Vinegar will break down in the soil, likely due to soil microbes, and the pH will rise, eventually. That's why its important to have agricultural sulfur, granulated sulfur, in the soil. This material will slowly dissolve and be transformed into sulfuric acid, but the process takes about a year. It is possible to use liquid sulfuric acid, added to tap water, to lower the pH of the water. However, sulfuric acid is not readily available retail. It is relatively dangerous to store in the house, where it might end up in the hands of curious children. Sulfuric acid that is intended for use in storage batteries could contain traces of lead. This would be fine, for the intended use, but lead should never be added to the soil, because it is toxic. If you are going to use sulfuric acid to lower soil pH, you should know where it originated, and you should have an analysis for trace contaminants, including lead. Iron contamination would not be a problem. The pH of the irrigation water will have to be measured, either with a calibrated pH meter, or by means of titration. It is generally easier and safer to work with 5% white vinegar, available at any grocery store, for about $1.50 per gallon. That's why I use it on our blueberries. Agricultural sulfur is harder to find, but they sell it to farmers in 50 lb bags. It is used for growing alfalfa, here in Wisconsin. It is not terribly expensive, I recently paid 79 cents a pound, at a rural farmers co-op.

Take photos and post them, you want to be sure of what you have before taking any advice!

Glad to hear they perked up for ya. I agree that transplanting over the winter isnt a good idea, but sometimes you HAVE to. I just had to this morn, like you Caren, I had roots galore coming out of the bottom of some brug pots. Same thing last year too, and everything went well. If ya have to then ya have to. As long as the next size pot up isnt too big. IMO I think it is better to pot them up once the roots start coming out of the bottom..if you wait too long, you'll either risk blocking the drainage holes with the roots, or damage those out of the pot roots getting them back thru the drainage holes to unpot it. And if you cut the roots, your plant will really go into shock. Linda..beer formula?? pray tell....

Move it now. There is no point to punishing it for the rest of the summer. You and the plant will be much happier...yg