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Improving Garden Soils with Organic Matter

This publication will help you understand the importance of soil organic matter levels to good plant performance. It also contains suggestions for suitable soil amendments. Any soil, no matter how compacted, can be improved by ...

Dan Sullivan, Linda Brewer, Neil Bell | May 2003 | OSU Extension Catalog

Add organic matter to improve garden soils

Adding organic matter is the best way to improve nearly all kinds of soils.

Feb 27, 2009 | News Story

Coastal Pastures in Oregon and Washington

The coastal regions of Oregon and Washington have different climate and soils than other parts of the states. Rainfall is high, ranging from 70 inches in southern Oregon to more than 100 inches in the coastal mountains. ...

Fred Lundin | Sep 1996 | Article

Mulching around my tree, how can I get it right?

Q: I'm putting cardboard and chipped wood over much of my backyard to keep the weeds down. How much room should I leave free of cardboard around the trees (one planted only a year ago) so they get enough water (whether ...

A: View answer | View all featured questions

Stressed trees show dieback

Browning or dieback is usually caused by weather-related stress, sometimes in combination with pests and diseases.

Mar 2018 | Article

Nothing beats bug patrol for organic gardeners

Look for OMRI logo when buying organic products

Kym Pokorny | Apr 29, 2016 | News Story

Five tips to winterize your trees

Your trees may still need attention even in the coldest days of winter.

Jan 17, 2014 | News Story