Lightweight concrete recipe for raised beds!

[DirtMechanic]

Thought I would make a few sidewall for raised bed this winter? I need to fallow our garden but am not a fan of wood for the purpose.

 

[Silentrunning]

Why have walls at all? I have seen some very nice looking raised beds that are just sloped and mulched on the edges. I have never tried it but I know it looks a lot less industrial than some of the wood or cement walls I have seen.

 

[DirtMechanic]

Why have walls at all? I have seen some very nice looking raised beds that are just sloped and mulched on the edges. I have never tried it but I know it looks a lot less industrial than some of the wood or cement walls I have seen.

In this case I want to truly isolate the garden soil for a number of years. I use a hill row method now, for spring drainage.

 

[mgmine]

Depending on what you want to plant concrete may not work for you. It can cause the soil to become alkaline. This would be a problem with some plants that are acid lovers.

 

[DirtMechanic]

Depending on what you want to plant concrete may not work for you. It can cause the soil to become alkaline. This would be a problem with some plants that are acid lovers.

I am considering hypertufa, with vermiculite at this point. There is not that much portland in it. And my clay is 5pH so alkalinity is mostly welcome. I won't put blueberry or blackberry in it, mainly veggies.

 

[SeniorCitizen]

Have you seen this concrete method?