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Q.Can Ground Up Corks Be Used As Mulch In A Flower Garden?

Zone Rio Vista, CA Sunset Zone 14 | Anonymous added on April 15, 2022 | Answered

My nephew works in Ag (at a winery) and he has bags of used corks. We thought they might make a good mulch if they were ground up before spreading them out on the rose garden.

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Certified GKH Gardening Expert
Answered on April 17, 2022

I did a little research and wine corks can be composted, so I would think you could add it directly onto the soil as mulch (if it doesn't blow away). That is, if it is natural cork and not plastic made to look like cork. Plastic corks can be recycled.


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