Used Coffee Grounds Improve Garden Health

Households can repurpose spent coffee grounds for gardening, pest control, and composting by collecting, drying, and applying them. The article details methods—soaking grounds to make nutrient-rich fertilizer, a 200-gram-per-0.5-liter infusion for slug spray, sprinkling dry grounds, and adding 0.5 kg to compost—to supply nitrogen, potassium, phosphorus, and magnesium while improving soil structure and attracting earthworms.
Key Points
- 1Provide nutrients: coffee grounds contain nitrogen, potassium, phosphorus, and magnesium, improving soil fertility.
- 2Repel and control pests: infusions and dry grounds deter slugs, ants, and aphids without chemicals.
- 3Apply methods: dilute brewed grounds for watering, sprinkle dry grounds, avoid succulents, compost to accelerate decomposition.
Scoring Rationale
High direct usability for gardeners but low novelty and limited relevance beyond household gardening.
Sources
Public references used for this report.
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