Recycling Coffee Grounds in Your Garden
Put coffee grounds and filters to work improving your garden’s beauty and productivity.
Recycle these morning discards in your compost pile or worm bin. Or occasionally sprinkle the grounds on the soil surface of your indoor and outdoor container and in-ground gardens. In addition, you’ll have fewer slugs since caffeine is reported to repel and even kill slugs.
But moderation is just as important in the garden as it is in your own diet. Coffee grounds contain allelopathic chemicals that can inhibit the growth of certain plants. But once the grounds are fully decomposed there is no need for concern.
And be careful when adding large amounts of coffee grounds. They can temporarily tie up nutrients in the soil. So, play it safe and dig them into the garden in fall with shredded leaves and herbicide-free grass clippings, add them to the compost pile or feed them to your worms.
A bit more information: And don’t worry about coffee or tea making your soil too acidic. Organic matter tends to be slightly acidic, but changing your soil pH is difficult. Always start with a soil test whenever you are concerned about your soil nutrients and pH and want to make changes.
Related
Categories
Upcoming Live Events
& Webinars
Jan. 28, 2026
FREE WEBINAR:
Past, Present & Future of Mitchell Park and its Conservatory, the Domes
Register here
Feb. 13 - 15, 2026
PBS Wisconsin
Garden & Green Living EXPO
Madison, WI
More information
Feb. 18, 2026
FREE WEBINAR:
Plants that Go the Distance
Register here
Feb. 25, 2026
FREE WEBINAR:
Flowering Houseplants
Register here
Mar. 5, 2026
FREE WEBINAR:
Start New Plants from Seeds, Cuttings and More
Register here
Mar. 11, 2026
FREE WEBINAR:
Save Money & Boost Your Growing Success with Bare Root Plants
Register here
Mar. 18, 2026
FREE WEBINAR:
Patio, Deck and Balcony Gardens
Register here
March 26, 2026
FREE WEBINAR:
Getting Started Growing Vegetable and Flower Gardens
Register here
April 1, 2026
FREE WEBINAR:
Growing a Bountiful Harvest
Register here
May 6, 2026
FREE WEBINAR:
Adding Native Plants
to Any Size Gardening Space
Register here
June 3, 2026
FREE WEBINAR:
Managing Your Landscape
with Pollinators in Mind
Register here
WATCH ON-DEMAND WEBINARS
Learn More


