The carrot (Daucus carota subsp. sativus;) is a root vegetable, usually orange in colour, though purple, red, white, and yellow varieties exist. It has a crisp texture when fresh. The most commonly eaten part of a carrot is a taproot, although the greens are sometimes eaten as well. It is a domesticated form of the wild carrot Daucus carota, native to Europe and southwestern Asia. The carrot is a variable biennial plant, usually flowering from June to August.
Carrots grow best in full sun but tolerate some shade. The optimum growth temperature is between 16 and 21 °C (61 and 70 °F). In order to avoid growing deformed carrots it is better to plant them in loose soil free from rocks. They thrive in raised garden beds. High nitrogen levels should be avoided, as this will cause the vegetables to become hairy and misshapen.
Carrots are useful companion plants for gardeners. There is evidence that growing it with tomatoes increases tomato production. If left to flower, it (like any umbellifer) attracts predatory wasps that kill many garden pests.