Building Garden Plots
What is the best combination of optimum soil when growing vegetables in a raised garden? Is pressured treated lumber OK?
Howard County Maryland
You will want to fill your raised bed with a mixture of compost and garden soil or purchased topsoil in a 1:2 or 1:1 ratio.
Leaf Gro® is an example of a commercial compost, made and widely available in Maryland. It is sold in bags and in bulk. Check out their website to find local vendors who sell LeafGro:https://leafgro.menv.com/retailers.html
Some will mix and deliver topsoil mixed with compost.
If using existing garden soil have it tested by sending a sample to a soil testing lab:
Have the lab test the soil for lead if you plan to grow food in your raised bed.
Here is our information on raised beds- be sure to watch the video:
and then take a look at this page on materials for building raised beds to help you to make your decision on what to use: https://extension.umd.edu/hgic/topics/materials-building-raised-beds