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Water Quality and Its Effect on Media

Course Information

Welcome to the Water Quality and Its Effect on Media Course!

In this learning course you'll learn all about water quality and how it impacts plants. Lynn Griffith covers topics such as: water and media pH, electrical conductivity, alkalinity, toxicity, sodium, chloride and other elements that affect water quality. 

Click the View Course Material button on the right to start this course.

Lynn Griffith

A graduate of Duke University, Lynn Griffith has been involved with the horticulture industry for decades as a professor, professional speaker, author, consultant and head nursery grower. Lynn provides his expertise in plants and soil in the form of educational courses and consultation for Harrell's LLC.

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In addition to being the nation’s largest distributor of branded fungicides, herbicides, and insecticides, Harrell’s produces custom-blended fertilizers, specialty liquids, and wetting agents. Additionally, Harrell’s is the exclusive US owner, formulator, and distributor of all POLYON® branded products.

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