Growing Parsnip

Pastinaca sativa : Apiaceae / the umbelliferae family

Jan F M A M J J A S O N Dec

Not recommended for growing in USA - Zone 5a regions

  • Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 43°F and 70°F. (Show °C/cm)
  • Space plants: 3 - 4 inches apart
  • Harvest in 17-20 weeks. Best flavour if harvested after a frost..
  • Compatible with (can grow beside): Swiss Chard (Silverbeet), Capsicum, Peas, Potatoes, Beans, Radishes, Garlic
  • Avoid growing close to: Carrot, Celery, Brassicas
  • A freshly dug parsnip
  • Parsnip leaves

Best grown in deep sandy, loamy soil. Use fresh seed and soak seed overnight then, after planting, keep seeds moist until seed germinate. Similar to starting carrots, maybe cover with a wooden plank or mulch until seeds germinate. They will completely fail if the seed dries out after planting and it's not unusual to have an entire packet fail. Difficult to grow in summer as the seed dries out fast and won't germinate. Leave in the ground until after frost or at least a couple of weeks of really cold weather. The cold results in the starch in the roots being converted into sugars which give the parsnip its sweet taste. Use a spade to dig the parsnip out of the ground.

Germination rates of parsnip seed are not great so sow about 3 seeds per inch and at a depth of around half an inch. Germination may take up to 20 days. Thin seedlings down so they are about 8 cm (4 in) apart. If you are planting in rows then space the rows about 50 cm (20 in) apart.

Culinary hints - cooking and eating Parsnip

Peel and roast with vegetables or meat. The sweetish flavour of parsnips enhances most other vegetables.

Your comments and tips

Be the first to post a question or tip from the USA

Hey Bianca, Yeah unfortunately parsnips need a long cool season to grow at their best, and your question makes sense. I'm in far north nsw and we just make sure to plant them as soon as night temps get consistently below 14C (usually around end April/beginning May) and harvest them before night temps are consistently above 14C (usually late September). They also start to flower around this time so we get them out before that happens too. Saving seeds of the last plants to flower is a good idea so that you can eventually have more heat-tolerant parsnips in future. So basically the earlier you can get them in the better, but not too early! haha. I think the planting times are set as they are because it's when the weather is safely cool enough in ALL subtropical regions but yeah I reckon just go with the conditions of your micro-climate. Hope that helps. Ben

- Ben

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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