You will want to blend the Aluminum Sulfate in the soil, if possible, and water it thoroughly after the application. Please see the Product Label for further information on how much to use and more specific treatment options for your hydrangeas.
Bonide Aluminum Sulfate is labeled for lowering soil pH for acid loving plants. For additional information, please contact Bonide at 315-736-8231.
The Bonide Aluminum Sulfate is not a fertilizer at all but a product to help balance out the PH level in soils for plants that need a more acidic level to best grow. If you are looking for a general fertilizer for your trees then you could apply something like the Bayer Advanced 12 Month Tree & Shru…
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