Coffee ground for plants

Your Coffee ground at Richter Starbucks won’t get lost anymore!



Green U, ECO and our Green Patrols, in collaboration with UM dining and Richter Library have started to pick up its coffee ground to use it as soil amendment in some of our landscaping areas.
If you want to get some coffee ground for your garden, contact greenu@miami.edu

 

 

 

 

 

 

 

 

 

 

The Starbucks coffee compost test

Use of Starbucks coffee grounds in amending mineral soils up to 35 percent by volume coffee grounds will improve soil structure over the short-term and over the long-term. Use of the coffee grounds at the specified incorporation rates (rototilled into a 6- to 8-inch depth) will substantially improve availabilities of phosphorus, potassium, magnesium and copper and will probably negate the need for chemical sources of these plant essential elements.
The nitrogen, phosphorus, potassium “guaranteed analyses” would be as follows for the coffee grounds:

Nitrogen: 2.28 percent
Phosphorus: 0.06 percent
Potassium: 0.6 percent

Available nutrient levels: The pH or reaction of the coffee grounds is considered slightly acidic and in a favorable range at 6.2 on the pH scale.
Learn more