When to Plant Caraway in Sydney, Warm Temperate Guide

Sow now in Warm Temperate Soil 17.9°C, best 18–22°C. Still too cold.

Soil temperature is modelled from Open-Meteo forecast (Sydney), not a live sensor.

What this month normally looks like in Warm Temperate

In October the Warm Temperate zone normally runs 24°C by day and 13°C overnight, with about 66 mm of rain over 7 or 8 wet days. The coldest October night on record across the zone was -1.5°C, so a late frost is not out of the question. Averages 1991 to 2026, 153 postcodes, SILO.

Jump to section
  1. Planting calendar
  2. How to grow
  3. Local tips and varieties
  4. Pests and problems
  5. Harvesting
  6. Storing and preserving
  7. Other zones and related crops
  8. Common questions

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This Caraway guide is written for the Warm Temperate zone, which takes in Sydney, Newcastle and Wollongong. Somewhere else? Your postcode picks the right one.

Not your zone? Cairns Brisbane Melbourne Canberra Alice Springs Perth

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

Planting window
Mar to May, Sep to Oct
Days to harvest
about 12 weeks
Sun
Full sun to part shade
Spacing
25 cm apart
Soil pH
6.5–7.0

Caraway is a hardy biennial seed herb in the Carrot family. It grows leaves and an edible taproot in the first season and flowers and sets seed in the second summer after a winter (Happy Valley, The Seed Collection).

Caraway

Photo: Wikimedia Commons

Planting Calendar for Warm Temperate

  • Jan -
  • Feb -
  • Mar D
  • Apr D
  • May D
  • Jun -
  • Jul -
  • Aug -
  • Sep D
  • Oct D
  • Nov -
  • Dec -

S = Seed Tray   T = Transplant   D = Direct Sow

Want a nudge when it is sowing time?

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

How to Grow Caraway in Warm Temperate Australia

Soil
Well drained fertile soil (Green Harvest), kept moist (The Seed Collection).
Salt
Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
pH Range
6.5-7.0
Sunlight
Full sun to partial shade (Eden Seeds, Green Harvest).
Spacing
25cm apart, 45cm between rows
Watering
Even watering (Green Harvest).
Good companions
Peas

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Warm Temperate Growing Tips for Caraway

Key Challenges

  • Taproot resents transplanting

Pro Tips

  • Sow where it will grow
  • Cut back in autumn, it re-sprouts in spring

Pests and problems for Caraway in Warm Temperate

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Browse the full pest library →

Harvesting Caraway

When ready: Leaves from 10 to 12 weeks (Happy Valley). Seed ripens about a month after flowering, when plump and light brown (Happy Valley) or rich deep brown (Green Harvest).

How to harvest: Cut whole seed heads, hang upside down in a paper bag, then thresh (Green Harvest, Happy Valley). Dig roots in the first autumn or winter (The Seed Collection).

Storing and preserving caraway

How to keep it
  • Drying seed. Hang seed heads in a paper bag with holes until the seed drops (NCHFP). Keeps: 1 to 3 years airtight.
  • Freezing leaves. Chop and freeze in ice cube trays (NCHFP). Keeps: 6 months.

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What members get

  • Soil and weather from your nearest station
  • An email when it's time to sow
  • Your own garden plan, including planning from a photo
  • Price history and price alerts
  • Pest risk alerts for your area
  • Full salt and canning detail

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Common Questions About Caraway

When do you plant caraway in Australia?

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

Can you grow caraway all year round in Sydney?

No. In the Warm Temperate zone the planting months are Mar to May, Sep to Oct. Outside that window it either bolts, sulks or gets cut down by the weather.

When should I plant Caraway in Sydney?

Eden Seeds gives March to May or September to October for mild climates. Green Harvest says early spring to autumn in temperate areas. Sow 5 to 10 mm deep, 20 to 30 cm apart (Eden Seeds). Cut back in autumn; it re-sprouts in spring and flowers in the second year (Green Harvest).

What soil temperature do Caraway need?

Caraway germinate best when soil temperature is between 18°C and 22°C.

How do I know when Caraway are ready to harvest?

Leaves from 10 to 12 weeks (Happy Valley). Seed ripens about a month after flowering, when plump and light brown (Happy Valley) or rich deep brown (Green Harvest).

What grows well with Caraway?

Good companion plants for Caraway include: Peas.

Are caraway salt tolerant?

Only a little. Caraway are moderately sensitive to salt, so the harvest drops on salty bore water. Mix salty water with rainwater, and mulch the bed.

Which zone am I in?

Type your postcode into the box near the top of the page and it 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 Warm Temperate zone, Sydney is its reference city.