Good for flower bed- Lay down a thick layer of CARDBOARD in your raised garden beds to kill the grass. It is perfectly safe to use and will fully decompose, but not before killing any grass below it. They’ll also provide compost and food for worms.
Check out this super easy Raised bed garden design! And you can put little flowers in the cinder block holes as a cute, colorful border too! I'm definitely going to be doing this for my vegetable garden this spring! This design is using 10 cinder blocks
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