Oregon Tilth's purpose is to educate gardeners, farmers, legislators, and the general public about sustainable growing practices that promote soil health, conserve natural resources, and prevent environmental degradation while producing a clean and healthful food supply.

Oregon Tilth is an Accredited Certifying Agent (ACA) for the USDA's National Organic Program.

Each issue of IGT offers informative articles covering agricultural news items relevant to both rural producers and urban consumers.

Regular features include yard and garden tips, OTCO certified farmer or processor profiles; research updates and news; classified ads and a calendar of upcoming events.

[citation needed] In October 2012, the merger was called off after the proposal failed to achieve the two-thirds vote necessary from Oregon Tilth members.