Answer: Coffee grounds are a good organic source of nitrogen. Yes, they can be spread around all plants. They decompose slowly, adding a steady supply of nitrogen and are unlikely to burn plant roots. It's also a good way to reduce the amount of waste sent to the landfills. You can also put them in a compost pile. Engaging the students and their parents is a great idea! You can simply spread a half inch of coffee grounds over your garden beds and dig them in, then spread an additional half inch over the top of the soil after planting. Best wishes with your gardens!
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