Root vegetables such as carrots and beets often have misshapen roots when grown in rocky soil. Since root crops prefer well-drained soil, they're ideal for growing in raised beds, where their roots can develop freely.
use vertical railway sleepers to create a curved wall raised beds - curved walls may work with overall design better divide between Mediterranean garden and English garden rather than original oblong med wall bed idea
Simple Raised Garden Farmhouse Style
How to create a simple farmhouse raised bed garden with minimal maintenance. via @dandelionpatina