Among the main crops grown are potatoes, barley, and salad vegetables, such as lettuce and tomatoes. Bulbs and flowers are probably the Netherlands' most famous export, particularly tulips. Other major exports are meat and dairy products, including cheeses, such as Gouda and Edam. Many people from the former Dutch colonies in southeast Asia settled in the Netherlands in the 1940s and 1950s. They were followed in the 1960s by a flow of foreign workers from southern Europe, Turkey and Morocco.
Immigrants now make up about a fifth of the population of the Netherlands' major cities.
Most have full Dutch citizenship. The Dutch pride themselves on their policy of welcoming immigrants and refugees.