What plants benefit from milk?
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Iām guessing the idea is to give the plant certain nutrients, maybe calcium? But using a good plant food in your water is going to be much better in the long run (Super Thrive Foliage Pro is a favorite on here šŖ“). Putting milk in your soil is most reliably going to leave you with a sour milk smell that will attract pests šš»
@SportRedpepers no plants. I 100% agree with @debbiedo , using milk will create more problems than benefits. There's *some* science behind its use against powdery mildew on edible crops, but it poses no benefits for the average houseplant.