Before You Fill Your New Raised Beds With Potting Soil Watch This 

Sequoiah of Project Tree Collard shows you step by step how to use less potting soil mix in your new raised beds. She demonstrates a hugelkultur inspired technique of using dead wood logs, twigs, and nitrogen-rich greens/manures or kitchen scraps in the bottom of the raised bed. This feeds the soil slowly as it decomposes and also saves you money on potting soil.