Master Gardener Series: Herbaceous Ornamental Plants

This series of short courses is excerpted from OSU’s Master Gardener online course, allowing you to study specific fundamentals of gardening.

Herbaceous Ornamental Plants Course

In Herbaceous Ornamental Plants, you will learn about different types of herbaceous ornamental plants (perennials, ferns, grasses and more), and how to use and care for them in a garden setting.

By the end of the course you will be able to:

  • Define, and provide an example of, annuals, perennials, biennials, geophytes, grasses, ferns, and vines
  • Select suitable plants for a specific site by considering exposure, water zoning, color, size, hardiness zones
  • Identify different styles of planting and how they affect labor and water use
  • Describe how to prepare soil for planting herbaceous ornamentals
  • Give examples of good cultural management practices for herbaceous gardens, including watering, weeding, mulching, and fertilization

Master Gardener Series

OSU’s Master Gardener Short Course Series includes:

Please note: Taking all self-paced courses will not allow you 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. Also note that you will have access to course materials for one year after your registration date.

On Demand. Access Anytime
4-6 hours
price (2)


Signe Danler
Master Gardener Online

Signe Danler is a veteran Master Gardener and landscape designer with a Masters of Ag degree in Horticulture. With the OSU Extension Service Master Gardener Program, she uses her experience and training in gardening, urban forestry and ecological landscaping to communicate about and promote sustainable gardening and landscaping practices.

Gail Langellotto

Gail Langellotto works with the Oregon State University Master Gardener program, state and local agencies, nonprofits and other non-governmental organizations. She helps to develop a better research-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:

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