Raised vegetable bed - lots of questions
What do you mean by 'mulch' ?
I built a raised vegetable bed - 12" high about three years back and at the time I had no idea what I was doing.
My garden is your typical rampant weeds, clay soil, rubble and every other nightmare. So I simply lined the raised bed with black weed suppressing material and put huge amounts of compost on top.
The whole bed is surrounded by stone chips, so I don't get slugs or snails, although a few other critters are starting to appear.
The bed has been quite successful since but my question is - when I make another bed in similar conditions, about how deep should the whole thing be to healthily accommodate plant roots? (There is an area I would like to use which has a hardcore surface and I'm too old and weak to break through it, so thought I could do similar to above - so how deep, please?)