When to plant Turnip in Arid Australia

Arid zone — applies to Alice Springs, Mildura, Broken Hill, Kalgoorlie, Port Augusta and similar areas. Growing elsewhere? Temperate · Cool · Subtropical · Tropical.

Turnips can be sown direct in any month of the year in the arid zone — one of the few crops with a truly open calendar here. Seed sown 10 mm deep is up in 6–12 days, and quick varieties reach the table in as little as 50 days, with 90 the outside figure. Open calendar does not mean equal results, though: autumn and winter sowings in Port Augusta or Mildura produce the mild, crisp roots turnips are meant to be, while midsummer sowings need shade cloth and daily attention just to stay alive.

Sowing calendar — arid zone

Green months are your sowing window: January to December.

Growing notes

Treat the year-round window as permission, not a recommendation. In dry country the crop divides sharply: from March to September turnips grow fast and clean in cool soil, and from October to February they are a heat-management exercise. Summer sowings want 30% shade cloth, mulch right up to the stems, and water daily — any dry check in that heat and the roots turn woody, hot-flavoured and hollow. That harsh, peppery turnip people remember from childhood is a stressed turnip; the fix is cool-season timing and unbroken moisture, not a different variety.

Being fully hardy, turnips sail through frosty inland winters — sowings around Broken Hill or Alice Springs in autumn will bulb up through the cold months without protection, and light frost sweetens them. Winter growth is slower, so lean toward the 90-day end of the range in the coldest weeks.

A few habits suit the arid zone specifically:

• Thin ruthlessly to 7–15 cm — crowded roots compete for scarce water and stay marble-sized.
• Harvest young, around golf-ball to tennis-ball size, before dry heat coarsens them.
• Sow a short row every three or four weeks rather than one long row you cannot keep evenly watered.

Turnip at a glance

Common questions

Can I really grow turnips all year round in the arid zone?

Yes, the sowing window covers all twelve months, but autumn and winter sowings give far better roots. Summer crops need shade cloth and daily water to avoid woody, hot-flavoured turnips.

Why do my turnips taste hot and bitter?

Heat and water stress. Turnips that dry out or mature in high temperatures develop a harsh flavour — sow in the cooler months and never let the soil fully dry between waterings.

How long do turnips take from sowing to harvest?

Between 50 and 90 days, with germination in 6–12 days. Warm-season sowings mature faster; winter crops sit at the slower end.

When should I plant turnips in Port Augusta?

Any month is possible, but March to August sowings are the sweet spot — roots develop in cool weather and need far less irrigation to stay mild and crisp.

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