Don't throw away your coffee grounds or egg shells, instead as you turn the potting soil in your house plants, add the grounds and shells for healthier house plants. This can also be used in vegetable gardens for larger crop yields.
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We use the empty coffee containers, without the lid, to store our used grounds from the coffee maker each morning. When yard clippings and leaves begin to build up, the grounds are mixed in.
When planting vegetables, such as radishes, carrots, onions etc., try sprinkling some coffee grounds in the soil first and then plant your seeds. This should keep the pests away and is also a good fertilizer.
Many cafes will give out quantities of used coffee grounds for your garden for free! Our local Borders does this and it is wonderful for the garden, esp.
I save all used coffee grounds and fruit & veggie waste (peels, etc.) and lightly dig them in in my flower beds and around shrubs and trees. My plants have huge blooms year-round (I live in Florida) and vibrant coloring.
In the continuing battle between gardeners and slugs, some people have tried coffee grounds to ward these voracious eaters away from their tender plants. This is a page about use coffee grounds to deter slugs.
This is a page about getting free coffee grounds for your garden at Starbucks. Starbucks and other coffee shops offer free grounds to their customers.