Answer: You could transplant it now to nonacidic ground, or you could change the pH of the soil where it is currently planted. To do that you would need to add lime, a small amount at a time until you achieve the desired results. A pH above 6.0 to 6.5 should be adequate. Lime is somewhat slow acting, so it might take a year or two to achieve the needed pH change. Your local county extension shoud be able to help you test the pH and determine how much lime you would need to add. Good luck with your hydrangea!
Q&A Library Searching Tips