We called at our local garden centre and collected some large cardboard boxes (which they allow customers to take free of charge). We laid the boxes on the ground approximately where we wanted the raised bed to be and using the compost that we've made over the last 5 months, we filled each box.
While the boxes were still half filled we could adjust their positioning, so that they were in line with the permanent raised beds at the other end of the garden,
Putting one box next to the last, we created the shape and approximate size that we need. These boxes were about two and half feet long and one and a half feet wide, but any size box could be used to make a raised bed the size that is needed.
It has poured with rain this afternoon and the cardboard isn't holding up very well to being soaked. The bottom sections of the boxes are fairing better than the lids, but I am more than happy if they disintegrate over the next few weeks, leaving us with soil in the correct area for us to put the two by four wood lengths around it when we get time. If you were using them in a polytunnel or greenhouse, they would no doubt last for the whole season.
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