- Sprinkle used grounds around plants before rain or watering, for a slow-release nitrogen.
- Add to compost piles to increase nitrogen balance. Coffee filters and tea bags break down rapidly during composting
- Dilute with water for a gentle, fast-acting liquid fertilizer. Use about a half-pound can of wet grounds in a five-gallon bucket of water; let sit outdoors to achieve ambient temperature.
- Mix into soil for houseplants or new vegetable beds.
- Encircle the base of the plant with a coffee and eggshell barrier to repel pests.
- If you are into vermi-posting, feed a little bit to your worms
I do compost on a daily basis, I use it in my gardens, my flower beds, anywhere It need it.It was orginally thought that coffee grounds are acidic, BUT if they are used or spent grounds, the brewing process takes out a lot of the acidity and leaves them a fairly neutral pH.
Certain plants like Azaleas, rhododendron, camellias, evergreens etc REALLY love coffee grounds. So try a few scoops around the base of your shrubs and azaleas and flower beds.
In composting, according to the Starbucks Website "Coffee grounds act as a green material with a carbon-nitrogen (C-N) ratio of 20-1. They make an excellent addition to your compost. Combined with browns such as leaves and straw, coffee grounds generate heat and will speed up the composting process."
So Thank you Starbucks for recycling your coffee grounds for us composters and gardeners! It is saving the landfills and trash dumps a TON of space and helping our soil be the best it can be.