Average Reviews:
(More customer reviews)Rock Phosphate is a good soil amendment if your soil needs it, however at 1lb per 1000 square feet it wouldn't do anything (instructions in the description are wrong). Instructions on the label say to apply at 1lb per 100 square feet which still isn't a lot. Application rates can be much higher depending on your soil needs. I wish I had done more research before purchasing this product. Its not a bad buy if you have ONE rose bush to feed.
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Ingredients:Phosphoric Acid from Rock Phosphate Analysis:Available Phosphate (P2O5) 3.00% Description:In addition to supplying phosphorous for blooming flowers and vegetable gardens, Rock Phosphate also provides calcium and small amounts of trace elements. Since it contains no harmful acids associated with ordinary superphosphates, it will not harm beneficial soil organisms and earthworms. For bigger and improved root systems, apply Rock Phosphate to roses, flowering bedding plants, perenials and vegetable gardens for continuous plant nutrition. Application Recommendations:Apply at the rate of 1 lb. per 1,000 sq. feet or 1/2 cup per shrub. Work into topsoil, water thoroughly.
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