DH have recently moved into a house with a lovely size garden. The previous owners had created lovely raised beds that they put potted plants on. I would like to use these space to grow flowers and veggies (very new to it). In the current raised beds is solid mud. We are having this removed, but are both unsure of what we should actually refill it with for growing plants. Do we just buy soil and then use some compost too or what? Any suggestions are appreciated.