When to Plant Fennel (herb) in Alice Springs, Arid / Semi-Arid Guide

Sow February to May. Right now in October it is out of season. The next sowing month is February.

Planting window
Florence fennel is an autumn-sown crop here, grown in fertile soil and full winter sun. Spring sowings bolt in the heat.
Days to harvest
60 days
Sunlight
Full sun.
Water needs
Low water needs once established. Water regularly when young. Very drought tolerant as a...
Spacing
30cm apart, 60cm between rows
Soil pH
5.5-7.0

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

This Fennel (herb) guide is written for the Arid / Semi-Arid zone, which takes in Alice Springs, Broken Hill and Port Augusta. Somewhere else? Your postcode picks the right one.

Not your zone? Cairns Brisbane Sydney Melbourne Canberra Perth

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

Fennel (herb)

Photo: Wikimedia Commons

Herb fennel (common fennel) is a tall, feathery perennial grown for its anise-flavoured leaves, stems and seeds. NOT the same as Florence/bulb fennel (F. vulgare var. azoricum). Herb fennel is hardy, drought-tolerant, and can become a large landscape plant reaching 1.5-2m. Considered a weed in parts of Australia, grow responsibly.

See what grows now in your own postcode

Planting Calendar for Arid / Semi-Arid

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
- S S/T/D S/T/D T/D - - - - - - -

S = Seed Tray   T = Transplant   D = Direct Sow

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Current Growing Conditions

Soil temperature: 23.9°C (optimal range: 10–25°C) ✓ Ready to plant

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

What this month normally looks like

In October the Arid / Semi-Arid zone normally runs 32°C by day and 16°C overnight, with about 19 mm of rain over 2 or 3 wet days. The coldest October night on record across the zone was 1.9°C, so a late frost is not out of the question. Averages 1991 to 2026, 10 postcodes, SILO.

How to Grow Fennel (herb) in Arid / Semi-Arid Australia

When to Plant

Florence fennel is an autumn-sown crop here, grown in fertile soil and full winter sun. Spring sowings bolt in the heat.

Soil
Any well-drained soil. Tolerant of poor soils. Drought tolerant once established.
pH Range
5.5-7.0
Sunlight
Full sun.
Spacing
30cm apart, 60cm between rows
Watering
Low water needs once established. Water regularly when young. Very drought tolerant as a perennial.

Companion plants: Dill (distant), Sage

Avoid planting near: Tomato, Bean, Capsicum, Coriander, fennel is allelopathic and inhibits growth of many vegetables

Arid / Semi-Arid Growing Tips for Fennel (herb)

Recommended Varieties

  • Common fennel, very drought tolerant

Key Challenges

  • Can become weedy in arid zones with irrigation
  • Heat in summer

Pro Tips

  • Excellent drought tolerance
  • Minimal water once established
  • Watch for weediness near waterways

Harvesting Fennel (herb)

When ready: Harvest leaves anytime once plant is established. Seeds ready when brown on plant.

How to harvest: Snip feathery fronds as needed. Cut seed heads when brown and dry in paper bags. Harvest young stems for cooking.

Where to next

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

Also worth sowing in the arid and semi-arid zone this October: Lemongrass, Chilli Peppers, Basil and Capsicum (Bell Pepper).

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Common Questions About Fennel (herb)

When do you plant fennel in Australia?

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

Does fennel grow all year round in Alice Springs?

No. In the Arid / Semi-Arid zone the planting months are Feb to May. Outside that window it either bolts, sulks or gets cut down by the weather.

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 Arid / Semi-Arid zone, Alice Springs is its reference city.