Carrots and parsnips grow best in light, sandy soil so if your soil is heavy clay, stony, chalky or doesn't drain particularly well, concentrate on the maincrop, short-root types which cope better ...
For a continuous supply of carrots, sow a few seeds every fortnight. May-August - Grow, grow, grow Once the seedlings are big enough to handle gently pull out the weaker plants, leaving one carrot ...