Raised Garden

Saw the previous post about raised garden beds but it was over 10 years old..

So my wife wants me to make a raised garden bed and greenhouse for her. My idea is basically a U shaped system. Unfortunately we have a lot of trees in our yard but there is a good spot onder a tree that gets good light and just some shade, only problem is it is under a black walnut tree and we would like it eventually removed. My thought is making three "boxes" so if I did need to move the garden when/if the tree gets taken down I can move them in separate pieces.

My plan is 2 12x3 rectangular boxes 2 feet high going the long way [] []
and 1 10x3 box at the end. so basically it goes to the edges of the longer boxes and leaves her with a 4 foot space in between the beds so she can move around and keep some stuff in there.

What material will be my best bet? I'd love cedar but I think I will go broke, I like the price of P.T. but I want to make sure its safe. Thought about lining the wood and stapling plastic sheeting to the side walls if its a concern. Also looking for the best way to fill the boxes, cheapest and most beneficial. Ive heard peat moss makes good filler as well.

Any tips or suggestions would be greatly appreciated!

Thanks!

Aaron

 

I would make the boxes 4' wide. If you use 2X8 materials there will be less waste.

My beds are made from PT lumber and a couple are made from left over composite deck boards. I filled the beds with a mix of topsoil, sand, peat and compost. If you buy fill materials buy it bulk, not the individual bags sold at home centers.

 

Saw one yesterday made on a frame of 4x4's and 2x lumber as a cradle with platic 55 gallon drums cut lengthwise and set on the frame. Instant 2 for one They would be somewhat portable, but heavy with all the rock and dirt inside them. Empty them out and the weight is gone. What I liked about it was it was impervious to moisture and you probably could control the water by drilling prescribed holes in them for drainage.