For the earliest crops (e.g. Amsterdam Forcing or Ideal) sow in frames or under cloches February–March. Start outdoor sowings from early March choosing a warm and well-drained position. For maincrops, sow April-July. Sow thinly (to avoid attack from Carrot Fly) into a finely raked, moist soil, 1.8cm (¾”) deep, in rows 23–30cm (9–12”) apart. Alternatively for raised beds etc. grow in small blocks alleviating the need for rows. Carefully, thin seedlings if necessary until young plants are 5–7.5cm (2–3”) apart. 65 days from sowing to harvest to help with your selection (this is based on Toby's trials and may vary).