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When we enjoy our daily brew, the leftover coffee grounds are often overlooked, yet they are packed with potential benefits for our gardens. From natural fertilization to pest control, the uses of coffee grounds in gardening are diverse and environmentally friendly.

Here are 10 ways to use coffee grounds in your garden.

Natural Fertilizer

coffee grounds
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Coffee grounds are a valuable source of nitrogen, an essential element for plant growth. While they also contain phosphorus and potassium, their nitrogen content is most notable. To create a natural liquid fertilizer, steep two cups of coffee grounds in water overnight. This nutrient-rich solution can then be used to water your plants, providing them with a gentle boost.

Add it to Your Compost

composting food scraps and eggshells
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Coffee grounds are an excellent addition to compost, acting as a ‘green’ material that adds nitrogen to the compost mix. This enhances the nutritional content of the compost, which in turn benefits garden soil when applied.

Composting Made Easy: A Simple Guide to Transforming Kitchen Waste into Gold for Your Garden

Repel Insects and Pests

ants in garden
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The strong smell of coffee grounds is effective in deterring ants and other garden pests. This method offers a natural alternative to chemical pesticides, promoting a healthier garden environment.

Protect Your Plants From Slugs & Snails

A small brown slug eats the leaves of the plant. Pests eat radish leaves. slug invasion in spring.
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Contrary to popular belief, it’s the caffeine in coffee grounds that slugs and snails dislike, not just the texture. Sprinkling coffee grounds around plants creates a deterrent barrier, although results may vary and reapplication may be necessary after rain.

Mulch

Seasonal works in the garden. Landscape design. Gardening. Ornamental shrub juniper.
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Using coffee grounds as part of a mulch mixture can help retain moisture in the soil. However, it’s important to mix coffee grounds with other materials, such as leaf litter or wood chips, to prevent soil compaction. This approach maintains air quality and soil structure.

Foliar Spray

spraying the plant.
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Using coffee ground water as a foliar spray helps deliver the necessary nutrients to garden plants.

Food for Worms

Big beautiful earthworm in the black soil, close-up
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Coffee grounds are an excellent addition to vermicomposting systems, attracting worms and encouraging them to process and enrich the soil with essential nutrients more efficiently.

Fungus Prevention

Mold growth on soil in houseplant flower pot
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The use of coffee grounds can be used to prevent fungal infections in plants. Gardeners should use this method as part of a broader plant care strategy and not as a sole preventive measure.

Soil Enhancer

coffee fertilizer
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Mixing coffee grounds with other organic materials like eggshells or wood ash can create a balanced soil amendment. This combination enriches the soil with a variety of nutrients, improving overall plant health and growth.

Keep the Neighborhood Cats at Bay

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The strong aroma of coffee can deter neighborhood cats from using your garden as their personal litter box.

How to Use Coffee Grounds on Houseplants

coffee grounds
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If you’ve been in the habit of simply disposing of your coffee grounds each morning, you should rethink your approach. Coffee grounds offer an eco-friendly alternative for enhancing your plant’s soil quality and promoting growth. Coffee grounds have nutrients that plants like, so they can improve your soil and act as a natural fertilizer. Here’s how.

How to Use Coffee Grounds on Houseplants

14 Incredible Ways to Repurpose Used Coffee Grounds

coffee grounds in spoon
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Most people toss out used coffee grounds after making their morning cup of coffee, but what you might not know is that these grounds can actually be useful in many ways. You can repurpose them to do things like composting or cleaning, which can help reduce waste in your home. Here’s how.

14 Incredible Ways to Repurpose Used Coffee Grounds

eep Them Away From Your Houseplants

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Gnats are more than just a minor annoyance; these tiny pests buzz around with a persistence that’s hard to ignore. Here are ten effective ways to keep gnats away from your house plants.

How to Outsmart Gnats to Keep Them Away From Your Houseplants

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