When to Plant Parsnip in Cairns, Tropical Guide

Published · Last reviewed · By Garden Buddy
Growing advice is reviewed by hand. Planting dates, current conditions and prices on this page update daily.

This Parsnip guide is written for the Tropical zone, which takes in Cairns, Townsville and Darwin. Somewhere else? Your postcode picks the right one.

Not your zone? Brisbane Sydney Melbourne Canberra Alice Springs Perth

Also handy: will it frost this week? and what grows in shade.

Parsnip

Photo: Wikimedia Commons

Parsnips are a cool-season root vegetable prized for their sweet, nutty flavour which intensifies after frost exposure. They are slow-growing and demand patience, but reward with excellent yields. A staple of temperate Australian gardens, they struggle in tropical and subtropical climates.

Planting Calendar for Tropical

Parsnips are fundamentally unsuited to tropical climates. Temperatures are too high for germination and root development. The optimum growing range (16-20C) is rarely achieved.

Want a nudge when it is Parsnip sowing time in Cairns?

One email a week with what is worth planting in the Tropical zone right now, Parsnip included, plus which veg has jumped in price at the supermarket. Free, and you can stop it in one click.

Current Growing Conditions

Soil temperature: 21.4°C (optimal range: 10–21°C) ✗ Outside optimal range

Modelled from Open-Meteo forecast (Cairns), not a live sensor.

How to Grow Parsnip in Tropical Australia

When to Plant

Parsnips are fundamentally unsuited to tropical climates. Temperatures are too high for germination and root development. The optimum growing range (16-20C) is rarely achieved.

Soil
Deep, loose, stone-free loam. Dig to at least 30-40cm depth. Avoid heavy clay or stony soil which causes forked, stunted roots. Do not use fresh manure. This also causes forking.
pH Range
6.0-6.8
Sunlight
Full sun to light afternoon shade
Spacing
12cm apart, 40cm between rows
Watering
Consistent deep watering throughout the growing season. Inconsistent watering causes cracking and woody cores. Water deeply once or twice per week. Reduce watering slightly as roots approach maturity.

Companion plants: Radish (as row markers), Onion, Garlic, Pea

Avoid planting near: Carrot (shares pests), Celery, Dill

Tropical Growing Tips for Parsnip

Recommended Varieties

  • Not recommended for tropical zones

Key Challenges

  • Heat stress
  • Poor germination
  • Roots become woody and bitter
  • No cold period to sweeten roots

Pro Tips

  • Honestly, do not attempt parsnips in the tropics
  • Consider alternative root crops: taro, cassava, sweet potato
  • If determined to try, grow in the coolest months (June-August) in a shaded position with very heavy mulching

Harvesting Parsnip

When ready: Foliage begins to yellow and die back. Roots should be at least 5cm diameter at the crown. Flavour improves significantly after first frost. Can be left in the ground and harvested as needed.

How to harvest: Loosen soil deeply alongside the root with a fork before lifting. Never pull directly. Parsnip roots snap easily. Trim foliage to 2cm. Use immediately or store.

Worth growing?

A 2.4 m × 1.2 m bed fits 46 plants, about $110 worth at today’s Coles prices, checked today.

That is roughly 9 kg at $12.00 a kilo.

Draw your parsnip bed → No account needed.

Where to next

What parsnip costs in the shops right now, retailer by retailer, updated daily.

Also worth sowing in the tropical zone this September: Lemongrass, Ginger, Cucumber and Basil.

The pest most likely to find your parsnip: Wireworms.

Supermarket Price

Current average retail: $12.00/kg (12-month range: $12.00–$14.30)

Grow your own and save on grocery bills.

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Common Questions About Parsnip

When do you plant parsnip in Australia?

It depends on your climate zone, not the calendar month alone. Planting months by zone:

Which zone am I in?

Type your postcode into the box under the heading and the page tells you, and links this crop in your own zone if it differs. Or look it up on the grow zone map. This page is the Tropical zone, Cairns is its reference city.