When to Plant Cumin in Brisbane, Subtropical Guide

Sow now in Subtropical Soil 19.6°C, best 18–25°C

That soil figure is read off our own weather station in South East Queensland at 6:55 this morning, not a model.

What this month normally looks like in Subtropical

In October the Subtropical zone normally runs 27°C by day and 15°C overnight, with about 77 mm of rain over 7 wet days. The coldest October night on record across the zone was -0.2°C, so a late frost is not out of the question. Averages 1991 to 2026, 33 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 Cumin guide is written for the Subtropical zone, which takes in Brisbane, the Gold Coast and the Sunshine Coast. Somewhere else? Your postcode picks the right one.

Not your zone? Cairns Sydney Melbourne Canberra Alice Springs Perth

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

Planting window
Mar to Apr, Sep to Oct
Days to harvest
about 16 weeks
Sun
Full sun
Water
Regular
Spacing
20 cm apart

Cumin is a small tender annual grown for its seed. It wants full sun, moist well drained soil and a long hot dry summer: 14 to 17 weeks of hot weather to set seed (Diggers).

Cumin

Photo: Wikimedia Commons

Planting Calendar for Subtropical

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

S = Seed Tray   T = Transplant   D = Direct Sow

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

How to Grow Cumin in Subtropical Australia

Soil
Moist, well drained (The Seed Collection).
Salt
Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
Sunlight
Full sun (The Seed Collection, Seeds of Plenty).
Spacing
20cm apart, 30cm between rows
Watering
Keep moist but never wet; it prefers warm dry summers (Diggers).
Good companions
Cucumber, Beetroot, Cabbage, Potato

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Subtropical Growing Tips for Cumin

Key Challenges

  • Conflicting sowing advice
  • Humid summers

Pro Tips

  • Try an autumn sowing as ABC suggests
  • Plant in groups so stems support each other (Diggers)

Pests and problems for Cumin in Subtropical

Members see each pest score and pest risk alerts for your area. See what members get

Browse the full pest library →

Harvesting Cumin

When ready: Pods turn brown (Seeds of Plenty); seed is harvested in autumn (Diggers).

How to harvest: Cut whole stems, hang in a paper bag until the seed drops, then rub out and clean (Seeds of Plenty).

Storing and preserving cumin

How to keep it
  • Drying seed. Hang stems in a paper bag with holes until the seed drops (NCHFP). Keeps: 1 to 3 years airtight.

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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 Cumin

When do you plant cumin in Australia?

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

Can you grow cumin all year round in Brisbane?

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

When should I plant Cumin in Brisbane?

You might be able to grow it here under the right conditions. ABC Gardening Australia says cumin is best sown in autumn in Brisbane, while the seed companies say spring after frost (The Seed Collection, Diggers). Both windows are given; a dry autumn or a dry spring suits it, a wet summer does not.

What soil temperature do Cumin need?

Cumin germinate best when soil temperature is between 18°C and 25°C.

How do I know when Cumin are ready to harvest?

Pods turn brown (Seeds of Plenty); seed is harvested in autumn (Diggers).

What grows well with Cumin?

Good companion plants for Cumin include: Cucumber, Beetroot, Cabbage, Potato.

Are cumin salt tolerant?

Only a little. Cumin 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 Subtropical zone, Brisbane is its reference city.