Sour Milk on Garden or Plants

Starlet added on December 19, 2016 | Answered

Would it be ok to pour a gallon of sour milk on garden or plants? Does it have any nutritional value at all?

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Certified GKH Gardening Expert
Answered on December 20, 2016

Yes, it's fine to pour sour milk on garden soil or to spray it on plants. Milk will add a small amount of nitrogen and calcium to soil. Milk sprayed on leaves is a good way to prevent powdery mildew fungal growth- I'm not sure whether sour milk would have the same benefit but it's worth a try.

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