Hello. I recently added some soil acidifier to my gardenias (potted on south-facing sidewalk in Philadelphia, PA, have had them for two years) and now the leaves are crumpling like they haven't been watered in a long time, with some turning brown starting at the main vein in the center of the leaf. Other than flushing the pots with a lot of water to wash out the excess acidity, do you have any ideas on how to help my poor plants? Thanks!
