Hemp | OSU Extension Service

Hemp may only be grown in compliance with applicable state and federal law, including the 2014 and 2018 farm bills and the anticipated U.S. Department of Agriculture regulations. The following information is being provided for educational purposes only to inform licensed growers operating in compliance with applicable state and federal laws. Consult your local authorities, Department of Agriculture representatives, or personal attorney for questions regarding the legality of growing hemp in your jurisdiction.

OSU’s Global Hemp Innovation Center is home to the world’s leading experts in hemp research. The largest of its kind in the nation, it promises to advance the research of hemp and its market potential across multiple diverse industries and research fields to serve the growing international demand for innovative approaches to food, health, and fiber.

Visit the Global Hemp Innovation Center

Photo by Gordon Jones (Cropped from original)

Recent publications

What is Industrial Hemp?

Industrial hemp was grown as a commodity crop for decades until it was banned in the mid-1930s. Congress decriminalized the crop in 2018, sparking interest in it among growers in Oregon, where hemp can be grown successfully. ...

Valtcho Jeliazkov, Jay Noller, Sam Angima, Silvia I. Rondon, Richard Roseberg, Gordon Jones | Aug 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Soil, Seedbed Preparation and Seeding for Hemp

Growers planting a successful commercial crop of hemp for seed, fiber, or resin will follow these guidelines for soil preparation, seeding, and irrigation.

Richard Roseberg, Valtcho Jeliazkov, Sam Angima | Aug 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Basics of Fall Cover Cropping for Hemp in Oregon

With careful management, cover crops can provide multiple benefits for hemp production systems.

Gordon Jones, Valtcho Jeliazkov, Richard Roseberg, Sam Angima | Sep 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Hemp Sex-Ed

Hemp cultivation in Oregon is expanding, but growers need to be aware of the problems associated with unwanted pollination. Find out why it's vital that farmers coordinate with their neighbors to ensure a healthy hemp crop.

Lloyd Nackley, Kristine Buckland, Richard Roseberg | Feb 2020 | OSU Extension Catalog Peer reviewed (Orange level)

Latest content

OSU Hemp Newsletter Vol:1 Issue: 4 2021

The fourth issue of the 2021 OSU Hemp Newsletter. In this issue, we discuss corn earworm treatment options available to hemp growers; syrphids role on biological control of hemp aphids; and pre-harvest testing reminders.

Govinda Shrestha, Gordon Jones | Sep 2021 | Newsletter

OSU Hemp Newsletter Vol:1 Issue: 3 2021

The third issue of the 2021 OSU Hemp Newsletter. In this issue, we discuss corn earworm monitoring results from Southern Oregon and management strategies; steps to keep pollen out of CBD production fields; an overview of Botrytis hemp gray mold; a review of beet leafhopper concerns; and recent OSU news and updates on hemp.

Govinda Shrestha, Gordon Jones | Aug 2021 | Newsletter

OSU Hemp Newsletter Vol:1 Issue: 2 2021

The second issue of the 2021 OSU Hemp Newsletter. In this issue, we discuss corn earworm monitoring results from Southern Oregon; Pythium root and crown rot management; a pear grower field day visit to Horn Creek Hemp; and other updates.

Govinda Shrestha, Gordon Jones | Aug 2021 | Newsletter

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Additional Resources

A Guide to Collecting Soil Samples for Farms and Gardens

Laboratory soil tests help you develop your soil and increase crop production by providing information on available nutrient content. Soil testing helps you select the correct kind and amount of fertilizer and liming material. ...

Melissa Fery, Jeff Choate | Oct 2018 | OSU Extension Catalog Peer reviewed (Orange level)

Soil Test Interpretation Guide

This publication provides an overview of soil testing and general guidelines for interpreting soil test results for nitrogen, phosphorus, sulfur, potassium, calcium, magnesium, boron, zinc, copper, manganese, iron, molybdenum, chloride, ...

Dan M. Sullivan | Jul 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management: How to Identify a Plant or Weed

This video demonstrates the best ways to identify a plant or weed. It covers the process of photographing and collecting the plant and then how to narrow down and establish the plant's category. It explains how to use a field guide and a dichotomous key to identify a plant.

Silvia I. Rondon, Mary Corp, Stuart Reitz | Jun 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Recordings of the Southern Oregon Hemp Growers Forum

During the growing season, the Southern Oregon Research & Extension Center has been facilitating a series of meetings called the Southern Oregon Hemp Growers Forum with the intent to provide timely and accurate information to ...

Gordon Jones, Govinda Shrestha | Aug 2021 | Article

Identify Hemp Pest Problems

The Oregon State University Plant Clinic is a diagnostic facility that offers fee-based plant disease problem solving and specialized identification services.

Visit the OSU Plant Clinic Website

Photo by Gordon Jones (Cropped from original)

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Field Crops

Organic Agriculture

Soil

Integrated Pest Management

Weeds

Irrigation

Upcoming Events

Oct 5

Southern Oregon Hemp Growers Forum – October 2021

5:30 pm - 7:30 pm PDT Online

Meet Our Experts

Dari Biswanath

Assistant Professor

Contact me with any question about soil, agronomy, water in Klamath Falls/Basin Area

Gordon Jones

Agriculture

Govinda Shrestha

Hemp

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