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Gardening Myths

Using science to bust the many, many myths about gardening and lawn care.

coffee grounds

Will Coffee Grounds Make My Garden Soil Acidic?

Online, there are 1 million-plus recommendations on using coffee grounds in your garden to repel cats, boost soil nutrients and bacteria, attract earthworms, kill slugs, prevent weeds, aerate soil and god knows what else. I looked into the published science to see what the reality is on coffee grounds.

Will Coffee Grounds Make My Garden Soil Acidic? Read More »

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