Parsnip
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
- How to Grow Parsnips in Your Garden, Utah State Cooperative Extension
Recommended varieties for Santa Clara County
There are no specifically recommended varieties of parsnips yet.