Blueberry bushes prefer acidic soil and are sensitive to large amounts of fertilizer, especially nitrogen in the form of nitrates. Ammonium sulfate is the best fertilizer for blueberry bushes because it contains no nitrates and it helps lower the pH of the soil. It should be applied in late winter or early spring in a circle around the plant.
About this Author
Melody Lee worked as a newspaper reporter, copywriter and editor for 5 years. In addition, she has edited magazine articles and books. Lee holds a degree in landscape design and is a Florida master gardener. She has more than 25 years of gardening experience, which includes working at nurseries and greenhouses.