Growing Kale in Australia: The Complete Guide

Kale is an easy brassica to grow, needing full–part sun with consistent watering.

We get asked about kale often enough that it's worth setting out the full picture here, beyond what fits on our printable card.

It's worth being clear about why kale is worth the bed space before getting into how to grow it. At a glance, it's rated easy, with a sun of full–part sun; water of consistent; soil ph of 6.0–7.0 — details that matter more once you're actually planning around them than they do on a first read. The rest of this article works through exactly what each of those means day to day, in more depth than a single printable card has room for, and with the reasoning behind each recommendation rather than just the recommendation itself.

Climate and Timing Considerations

Australia's climate zones change growing timing more than most general advice accounts for. Cool temperate zones (Tasmania, the Victorian highlands, southern NSW) have recurring frost risk well into what other zones call spring, which compresses the safe planting window for frost-tender plantings. Warm temperate zones (Sydney, Adelaide, Melbourne, Perth) sit closest to what general advice assumes by default. Subtropical zones (Brisbane, northern NSW) rarely see frost at all, and the growing calendar shifts earlier and later as a result. Our site-wide zone setting adjusts the advisory note shown on the Planting Calendar for exactly this reason — worth setting once if you haven't already. The same zone setting also feeds the Harvest Calendar, so both ends of the growing cycle reflect wherever you actually garden, rather than a generic Australia-wide average.

• Cool Temperate (TAS, VIC highlands, southern NSW, ACT): shorter frost-free window — lean toward the later end of any spring planting window shown on the guide above.
• Warm Temperate (Sydney, Adelaide, Melbourne, Perth, coastal NSW/WA): closest match to the general timing shown above; frost is occasional but rarely severe.
• Subtropical (Brisbane, northern NSW, coastal QLD): minimal frost risk — often plantable a few weeks earlier and later than the general window shown above.

Cut-and-come-again

Harvest outer leaves from the base upward rather than cutting the whole plant — kale keeps producing new growth from the centre for months.

Planting Kale

Method. Direct sow or transplant seedlings.

Soil. Rich, well-drained, high organic matter.

Timing. Sow year-round in mild zones; thrives through cooler months.

Taken together, these are the details that separate a smooth result from a frustrating one.

Day-to-Day Care

Worth paying attention to:

• Harvest outer leaves regularly to keep new growth coming.
• Feed lightly every few weeks with liquid compost or seaweed tonic.
• Mulch to retain moisture and suppress weeds.
• Net if cabbage moth pressure is high.

Getting these details right matters more than it might seem — harvest outer leaves regularly to keep new growth coming. Net if cabbage moth pressure is high. Treat this list as a routine to build rather than a one-off checklist, and it becomes second nature within a season or two.

Common Problems

Keep these points in mind:

• Cabbage moth — caterpillars shred leaves; net or hand-pick.
• Aphids — cluster on new growth; hose off.
• Bolting — hot weather triggers flowering; harvest before the heat sets in.
• Slow growth — nutrient-poor soil; feed regularly.

Each of these compounds over a season — small misses early tend to show up later — cabbage moth — caterpillars shred leaves; net or hand-pick. Slow growth — nutrient-poor soil; feed regularly. Treat this list as a routine to build rather than a one-off checklist, and it becomes second nature within a season or two.

Harvest and Storage

Signs. Leaves reach hand-size, firm and deeply coloured.

Method. Snap or cut outer leaves from the base, leaving the crown to keep producing.

Curing. None needed.

Storage. Fridge crisper, up to a week.

It's worth reading these as a set rather than in isolation; they reinforce each other.

Preserving. See Fermenting for sauerkraut and fermented brassicas, or Freezing Produce for blanching and freezing a glut.

Recipes. Try our Kale Chips - a way to use a glut.

Companions & rotation

Our printable card above lists specific plants that pair well nearby and others best avoided, along with a rotation note: Onion, Beetroot, Herbs, Strawberry, Tomato. Getting this right matters more over multiple seasons than it does in any single one — the benefits and the risks of poor rotation both compound over time rather than showing up immediately.

Related Guides

If kale suits your garden, these related guides in the same category are worth a look too:

• Bok Choy
• Broccoli
• Brussels Sprouts
• Cabbage

For the condensed, printable version of everything above, head to the main kale guide page. Companion planting and bed rotation both make a measurable difference over a season, and our Companion Planting Checker takes the guesswork out of both. As with every guide on this site, this is general information based on our own research and experience, not professional advice — your specific soil, climate, and circumstances will always vary from ours to some degree.

Beyond the printable card, our Planting Calendar and Harvest Calendar tools will show a zone-adjusted note for kale specifically, and the Companion Planting Checker covers the specific pairings mentioned above in more detail.

Frequently Asked Questions

→ View the printable A4 guide for kale