Knowledgebase

Raised bed #895532

Asked March 26, 2025, 6:44 PM EDT

Can you use galvanized metal for a raised bed container? Is it food safe?

Anne Arundel County Maryland

Expert Response

Hi- galvanized metal raised beds are considered generally safe for food crops. The small amount of zinc from the zinc coating that could leach out is not a problem for soils, plants, or people. We would not recommend growing blueberries because the low-pH soil required could increase Zn leaching.

Look for or request specific information from the manufacturer on the processes and galvanizing standards they use, and testing they perform. 
Jon
Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied March 27, 2025, 9:54 AM EDT

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