Is there a natural fertilizer that encourages proper PH?
Like all azaleas, Encore Azaleas require a slightly acidic soil. Adding humus, pine straw or pine mulch, and/or peat moss will bring the pH in your soil down some, as will an acidifying fertilizer from your local garden center. For best results, I suggest contacting a local nursery or garden center, who will be more familiar with the conditions in your area, and might assist you in taking a soil sample, and make suggestions specific to your area and according to your planting needs.