Hi SH, initially we had the veggie plots at ground level , we had developed a section of a paddock.
It all started very well but then the paddock tried to reclaim itself and the "Battle of the Weeds' ensued. The weeds won due to other commitments at that time!
So it was decided that raised gardens were the next option. We looked at a variety of edging then opted on some untreated timber, because treated timber contains arsenic! We thought that might defeat the object, but as the guy in the timber said, 'Ya gotta die of summat!'
Knowing that the wood would then have a limited lifespan the idea was that once it rotted down we could take the wood away and work the beds without them.
In the meantime until that happens we will fill with compost etc. Time will tell if the plan works, ya just gotta suck it and see!
Wombat we have 5 1.2 acres, we run livestock too, the veggie plot is set in the corner of the chook paddock