Oregon State University

Master Gardener Online Short Course Series


Learn the art and science of growing and caring for plants at your own pace with Master Gardenerâ„¢ Online Short Course Series.

These eight courses, based on the OSU Master Gardener curriculum, allow for participants to learn specific fundamentals of gardening.

Please note: Taking all 8 self-paced courses will not allow a participant to receive a Certificate of Home Horticulture or become an OSU Master Gardener. These courses are entirely self-paced and are not taught by an instructor.


Participants can take as many short courses as they like, at any time, in any order. The courses are based off the instructor-led OSU Master Gardener curriculum.

  1. Basic Botany: Learn to identify a diverse range of whole plants, parts of plants, and non-plant relatives (such as fungus, lichen, algae, moss, fern, conifer and seed plants)
  2. Soils and Compost: Understand the impact of soil texture and composition on soil quality, pH levels, and soil nutrients; learn about fertilizer types and application techniques; learn how to produce compost
  3. Vegetable Gardening: Learn how to select a site, prepare soil and plant vegetables properly; gain skills to successfully produce food; learn to identify common insect and disease problems
  4. Introduction to Entomology: Study the biology, anatomy, life cycles, and differences between insects and non-insect arthropods; learn how to diagnose problems
  5. Plant Pathology: Identify microorganisms that cause plant disease and symptoms; learn how to diagnose and control plant disease
  6. Understanding Pesticides: Understand how to read and interpret pesticide labels; learn how to safely mix, apply, handle, and dispose of pesticides
  7. Integrated Pest Management: Understand theory, principles, and practices behind pest management, with emphasis on least-hazardous approaches
  8. Woody Landscape Plants: Learn how to select, plant, manage, and prune trees and shrubs, with site and environmental factors in mind


Gail Langellotto

Gail Langellotto works with the Oregon State University Master Gardener program, state and local agencies, non-profits and other non-governmental organizations. She helps to develop a better reearch-based understanding of how to design and sustainably manage gardens and parks to maximize ecosystem services. Her OSU Extension Service and outreach efforts are focused on communicating research-backed management practices to home gardeners and commercial landscapers.

Email: gail.langellotto@oregonstate.edu

The OSU Master Gardener program

Those interested in studying gardening with the guidance of an instructor can take Option 1 of Master Gardener Online. The course is offered twice a year, beginning in January and September. Participants who successfully complete the course are eligible to receive a Certificate of Home Horticulture.

Those interested in applying the concepts learned in the online training course through community volunteer opportunities can become an OSU Master Gardener with Option 2 of Master Gardener Online.


Select a question to view or hide the answer
Can these courses be taken in sequence in order for a participant to become an OSU Master Gardener?

No. In order to become an OSU Master Gardener, a participant must enroll in Option 2 of the instructor-led Master Gardener Online and complete 40 to 70 hours of volunteering in their community after finishing the coursework.

Will an instructor teach these courses?

No. The self-paced Master Gardener Online short course series were created for those who are interested in learning the full-length Master Gardener Online material but do not want to take the entire course. The short courses are self-paced. You must take the full-length Master Gardener Online course to learn the material under the guidance of an instructor.

What is the time commitment required for each course?

For each course students should budget one to two hours to view lectures, one hour for readings and one to three hours for assignments and quizzes. We suggest that those who are completely unfamiliar with gardening or basic biology should budget a little more time.

I understand each short course includes a quiz. Will I get to see my grade after taking the quiz?

Yes. You will see your grade immediately after completing the quiz.

I understand that each short course includes assignments. Will my assignment be graded?

No. We only encourage you to complete the assignment for your personal benefit.

Are there group rates for classes who wish to use one of the short courses?

Yes. If you are an instructor who'd like to use this content with your students, please contact learn@oregonstate.edu for our special class rates.

Can these courses be taken in sequence to earn a Certificate of Home Horticulture?

No. In order to earn a Certificate of Home Horticulture, a person must complete Option 1 of the instructor-led Master Gardener Online.

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Professional and Continuing Education
4943 The Valley Library
Corvallis, OR 97331-4504

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