The white headed ones are relatively new introductions of the last 70 years. In 1810 Brussels Sprouts were introduced from Europe to England. Cabbage is a native plant of the British Isles, mainly the coastal parts originally. For the best success ensure that the ground is firmed before planting. Peppers come in from South America and are half-hardy in this country.
Carrots are indigenous to Western Europe.
The Cauliflower is of Italian origin and was introduced in the 16 th century. Celery is a native plant and is also found in the humus rich, marshy areas of Europe. Cultivation of Cucumber dates back over 3,000 years. And is a native of Asia. The Romans under the Caesars introduced Endives and it spread through their empires.