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Coffee grounds and soil trial

Popular gardening advice touts the benefits of coffee grounds for acid loving plants, as a slug repellant and soil amendment. Little research based information is available to back up many of these claims. From November 2008 to September 2009 OSU Extension Service Master Gardener Compost Specialists in Lane County conducted an observational trial to see what the effect coffee grounds had on soil pH and nitrogen content when incorporated into soil.

Jun 2009 | Educational Document

Would my garden benefit from a java jolt?

Q: We hear about adding coffee grounds to garden soil. What are the benefits?

A: View answer | View all featured questions

Coffee Grounds and Composting

Coffee grounds are a great addition to the garden and compost pile. Help to recycle this great organic resource and reduce the amount of organics going to the landfill!

Jun 2018 | Article

Take All

This root rot look-alike is endangering wheat, grass, and barley. Learn the signs, symptoms, and controls of this disease.

Mary Corp | Oct 2018 | Article

What’s Wrong With My Madrone?

This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.

Max Bennett, Dave Shaw | Nov 2006 | Article