Gardening with Cinder Blocks Warning

[jpcajun]

I have heard this as well. I know several universities have done some research on this and the only thing that they determined was the blocks can leach lime into the soil over time. There is the possibility of leaching other compounds due to the fly ask but none of the research found enough evidence that it will leach.... lots of chatter on the internet about this topic but no scientific research to back it up.