I am looking to make some raised garden beds for my vegetables and have been looking at various designs, from wood, sleepers and concrete. I have heard that there can be some leeching of chemicals into the soil from these materials that may be taken up by the plants. I came across this post from a gardener in Thailand wh is using bricks that do not require cement as they link together.
www.beesgardencooking.com
Does anyone know where I might get these in the UK?

Raised Garden Beds
Raised garden beds have a lot of advantages and disadvantages. The soil that was originally in the garden was quite poor soil that we used to fill up the rice fields. This is generally 1 ½ meters deep, and turns into rock after a few days without rain. Rather than cover the whole area with good...
