When to Plant Shallots in Sydney, Warm Temperate Guide

Out of season. Next window opens in March Soil 18.3°C, best 8–30°C

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.

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

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This Shallots 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 Jun
Days to harvest
about 15 weeks
Sun
Full sun
Water
Regular
Spacing
20 cm apart
Soil pH
6.0–6.5

Shallots are a mild, easy bulb onion that grows as a clump, like garlic. You plant small bulblets in the cool months, keep a few from each harvest and replant them. They take about 3 to 4 months.

Shallots

Photo: Wikimedia Commons

Planting Calendar for Warm Temperate

  • Jan -
  • Feb -
  • Mar S/D
  • Apr S/T/D
  • May S/T/D
  • Jun T/D
  • Jul -
  • Aug -
  • Sep -
  • Oct -
  • 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, Shallots included, plus which veg has jumped in price at the supermarket. Free, and you can stop it in one click.

How to Grow Shallots in Warm Temperate Australia

Soil
Rich, well drained loam with low nitrogen. Avoid fresh manure (Garden Express).
Salt
Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
pH Range
6.0-6.5
Sunlight
Full sun (Garden Express).
Spacing
20cm apart
Watering
Keep the soil evenly moist, then stop watering once the bulbs mature (Seeds of Plenty).
Good companions
Lettuce, Carrot, Beetroot, Borage, Silverbeet
Keep away from
Peas, Beans
Grow before it
Fruiting crops (Tomato, Capsicum, Zucchini)
Grow after it
Legumes (Beans - Dwarf, Peas, Broad Beans)

Give the bed 3 turns before alliums go back in. Onion, garlic and leek like a lean bed and clean up after the heavy feeders.

Members see the exact salt threshold, how much harvest it loses as salt rises, and what to grow instead. See what members get

Warm Temperate Growing Tips for Shallots

Key Challenges

  • Downy mildew
  • Allium leaf miner
  • Birds lifting bulblets

Pro Tips

  • Net the bed
  • Plant firmly
  • Keep a few bulbs for next season

Pests and problems for Shallots in Warm Temperate

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

Browse the full pest library →

Harvesting Shallots

When ready: Lift when the tops fall over (Garden Express).

How to harvest: Lift the clump, shake off the soil and cure the bulbs in full sun for about 2 weeks (Seed Collection).

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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 Shallots

When do you plant shallots in Australia?

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

Can you grow shallots all year round in Sydney?

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

When should I plant Shallots in Sydney?

Plant from March to June, around autumn and early winter. Plant small bulblets with the stem just showing, 15 to 20 cm apart. Keep the best bulbs back for your next planting.

What soil temperature do Shallots need?

Shallots germinate best when soil temperature is between 8°C and 30°C.

How do I know when Shallots are ready to harvest?

Lift when the tops fall over (Garden Express).

What grows well with Shallots?

Good companion plants for Shallots include: Lettuce, Carrot, Beetroot, Borage, Silverbeet.

Are shallots salt tolerant?

Only a little. Shallots 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.