Carrots are a root vegetable that grow well in the spring or fall. They require loose, fine soil for straight, unforked roots.
Cultural tips for growing carrots, UC IPM
Planting
- Prepare soil so it is fine and lump-free to prevent misshapen roots.
- Direct seed in the spring February to April, possibly in May, or in the fall in September.
- Cover seeds lightly and keep moist.
- Once seedlings emerge, thin to 1 to 2 inches apart.
- Transplanting is not recommended because it typically results in forked or misshapen roots.
Harvesting
- Harvest when good sized but still tender.
- Can be stored in the ground during the cool season for harvesting as needed.
- If left in the ground too long, they may get woody or bolt (send up a flower stalk).
Pest management
Pests and disorders of carrot, UC IPM
More links
Santa Clara County Carrot Trial
Recommended Varieties for Santa Clara County*
For our typical heavy clay soils, short or round varieties such as those listed below are best.
| Chantenay | Short and wide, sharply tapering |
| Danvers | Thick, tapering, 6 to 7 inches long |
| Kundulus | Round |
| Nantes | Blunt, cylindrical, 6 to 7 inches long. There are multiple Nantes-type carrots. |
Other recommended varieties: Paris Market, Minicor, Thumbelina
* Many other varieties may also do well here in Santa Clara County. This list is based on UC Master Gardener trials, taste tests, and feedback from local growers.