UCANR

Parsnip

Garden Help > Vegetables

Five parsnips

Parsnips are a root vegetable in the Apiaceae family, also called Umbelliferae, which also includes carrots. Cultural requirements are very similar.

Cultural tips for growing carrots, UC IPM

Planting

  • Direct seed in February to April, possibly in May or September, depending on weather or local conditions.
  • Soil temperature should be at least 50ºF for germination. Seeds are very slow to sprout at that temperature (3 to 4 weeks). In general, expect at least two weeks for germination.
  • Plant seeds ½ to ¾ inches deep.
  • Thin to 2 to 4 inch spacing. When thinning, it’s recommended to snip off unwanted seedlings rather than pulling to avoid disturbing the roots of remaining plants.
  • As the parsnips grow, mound soil at the base of the plant to prevent greening of the root shoulders.

Harvesting

  • Expect 90 to 120 days to maturity.
  • Harvest when the roots reach 1-inch diameter at the top.
  • Flavor is best when the mature plants are exposed to cool weather for 2 to 4 weeks, which encourages the starches in the roots to convert to sugars.
  • Loosen soil with a digging fork before pulling roots.

Pest management

Parsnips are related to carrots, and their pests are similar.

Pests and disorders of carrot, UC IPM

More links

Recommended varieties for Santa Clara County

There are no specifically recommended varieties of parsnips yet.


Source URL: https://www.ucanr.edu/site/uc-master-gardeners-santa-clara-county/parsnip