Pressure treated lumber and raised beds

maxjohnson · December 6, 2016

Yeah I was about to post that link, I like his and OneYardRevolution evaluation on rockdust as well.

With that said, I choose not to use them. I'm in Florida and with 2x4 or 2x6 pine planks, has lasted me 3yrs so far, but it is definitely decaying away, which doesn't matter for me, since I'll turn it into a ground patch with woodchips mulching.

I do have one raised bed with concrete block, which I understand do not have fly ash like portland cinderblocks which you can't buy anyway. Only downside is it's quite heavy, but not a problem if you never intend to move it, but I can see a problem if you need to get rid of it or renting. They also say the material it the block can make the soil near it more alkaline, stuff is growing really well in it so I'm not concerned.

December 6, 2016	#12
maxjohnson Tomatovillian™ Join Date: Oct 2015 Location: OH 6a Posts: 592	Yeah I was about to post that link, I like his and OneYardRevolution evaluation on rockdust as well. With that said, I choose not to use them. I'm in Florida and with 2x4 or 2x6 pine planks, has lasted me 3yrs so far, but it is definitely decaying away, which doesn't matter for me, since I'll turn it into a ground patch with woodchips mulching. I do have one raised bed with concrete block, which I understand do not have fly ash like portland cinderblocks which you can't buy anyway. Only downside is it's quite heavy, but not a problem if you never intend to move it, but I can see a problem if you need to get rid of it or renting. They also say the material it the block can make the soil near it more alkaline, stuff is growing really well in it so I'm not concerned. Last edited by maxjohnson; December 7, 2016 at 02:14 PM.