The short version: Winter is one of the best growing windows in much of Australia, especially for cool-season vegetables that dislike summer heat: brassicas, leafy greens, root crops, alliums and legumes. Most do best sown in autumn so they settle in before the cold, though milder zones keep sowing right through. What thrives shifts a lot by climate zone, frost is usually the deciding factor, and winter runs from June to August.
It is easy to write winter off as the quiet season, but for a vegetable patch it is often the opposite. The crops that sulk in summer heat, the leafy greens and the brassicas, come into their own once the weather cools. The real trick is matching the crop to your climate, since a gardener in Darwin and one in the Tasmanian highlands are both gardening in winter in wildly different conditions. Get the timing right and many of these crops are forgiving, some even sweeter for a touch of cold.
What grows in winter, by crop group
The dependable winter performers are the cool-season vegetables, and they fall into five broad groups:
- Brassicas: broccoli, cauliflower, cabbage, kale, Brussels sprouts and quick Asian greens like pak choy.
- Leafy greens: spinach, silverbeet, lettuce and rocket.
- Root crops: carrot, beetroot, turnip, swede, radish and parsnip.
- Alliums: onion, garlic, leek and spring onion.
- Legumes: broad beans and peas.
Brassicas are the backbone of most winter patches, and many sweeten in the cold. Leafy greens bolt far less readily than in the heat, root crops fatten quietly in cool soil, alliums hold a bed for later, and broad beans and peas take the cold in their stride.
Sow in autumn, keep sowing in mild zones
Most cool-season crops are best sown in autumn so they establish before the coldest part of winter. A young plant already up and growing handles the cold far better than a seed trying to germinate in wet, chilly ground.
The milder your winter, the longer your sowing window stays open. In subtropical and Mediterranean zones you can often keep sowing through winter, and quick crops such as radish, rocket and Asian greens can go in every few weeks for a steady trickle to the kitchen. In colder areas the window narrows, so it is better to plant seedlings or wait until the soil warms in late winter. Read the soil rather than the calendar: if it crumbles in your hand and is not waterlogged, you have a window. A range of vegetable seeds suits autumn and winter sowing.
How the winter garden changes by climate zone
Winter looks completely different depending on where you garden, and the frost-free tropical and subtropical gardens have the widest range.
In the tropics, around Darwin and Cairns, winter is the dry season and the main growing window of the year, when leafy greens, beans and quick root crops all become possible. In the subtropics, from Brisbane to the Sunshine Coast, the window is generous, though inland gardens can catch a light frost.
In arid areas such as Alice Springs and Mildura, mild days give way to cold nights, so the frost-hardy crops suit best. In Mediterranean zones, including Perth and southern Western Australia along with Adelaide, mild wet winters and reliable rain are kind to brassicas, peas and broad beans.
In temperate gardens such as Sydney, Melbourne and Canberra, frost varies from one suburb to the next, but the frost-hardy crops generally come through fine. In cool and alpine areas such as the southern tablelands and the Tasmanian highlands, the season is short and frosts regular: this is garlic and broad bean country, and frost protection matters.
Frost: friend to some crops, foe to others
Frost is usually the biggest factor in the winter garden, and it cuts both ways, so knowing which crops welcome it matters more than the calendar.
On the friendly side, a light frost can lift the flavour of several cool-season crops. Brassicas such as kale, Brussels sprouts and cabbage often taste sweeter after cold weather, because the plant converts some of its stored starch to sugar in response to the cold. Parsnip does the same, which is why many gardeners leave it in the ground until needed.
On the unfriendly side, frost damages tender, warm-season plants and soft new growth, and young seedlings are the most vulnerable, even on crops that shrug off cold once established. Match crops to your frost risk and cover the tender ones on the coldest nights. Frost also pools in low spots and open ground more than in sheltered corners, so it helps to know where the cold settles, as the Bureau of Meteorology guide to frost sets out.
Garlic, broad beans and the patient winter crops
Some winter crops are about patience, and garlic is the classic example. It is a long-season crop, harvested in late spring or summer once the tops die back. By tradition it goes in around the shortest day in cooler districts, the old advice to plant on the shortest day and harvest on the longest. Timing is really regional, though, and many gardeners plant from autumn into early winter.
Broad beans are another patient staple, among the hardiest for cold weather. Sown in autumn or winter by zone, they sit out the cold and crop in late winter or spring. As legumes, they fix some nitrogen in their root nodules, and as the roots and spent stems break down, some of that nitrogen may become available to whatever follows. Onions and leeks are slow growers too, holding a bed for months while asking little of you.
None of these crops give an instant return, which is half their charm: you plant them, more or less forget them, and they reward you weeks later. If you feed the winter patch at all, the leafy and brassica groups respond well to a gentle fish and seaweed blend, little and often, since cold soil slows nutrient uptake.
Winter rewards a gardener who plans around the cold rather than fighting it, keeping a patch productive while the summer beds rest. Match the crop to your zone, sow in autumn where you can, and let the frost do its quiet work. For a head start, see our guide to starting seeds indoors.
Frequently asked questions
What vegetables grow in winter in Australia?
Cool-season vegetables, in five groups: brassicas, leafy greens, root crops, alliums and legumes. That covers broccoli, kale and cabbage through to spinach, carrots, onions, garlic and broad beans. What grows best depends on your climate zone.
When should I plant winter vegetables?
Most cool-season crops are best sown in autumn so they establish before the coldest weather. In milder subtropical and Mediterranean zones you can often keep sowing through winter, while in cold areas it is better to plant seedlings or wait until late winter.
Does frost ruin a winter vegetable garden?
Not usually, and frost can even help. Light frost often sweetens brassicas such as kale and Brussels sprouts, and some root crops too. It does damage tender, warm-season plants, so match crops to your frost risk and protect the vulnerable ones.
When is garlic planted in Australia?
Garlic is a long-season crop, harvested in late spring or summer once the tops die back. By tradition it goes in around the shortest day in cooler districts, but timing is regional, and many gardeners plant from autumn into early winter.
Is it worth planting vegetables in Perth over winter?
Yes. Perth and southern Western Australia have a Mediterranean climate with mild, wet winters that suit cool-season growing very well. Brassicas, peas and broad beans usually do well, and reliable winter rain keeps the sowing window open.
Related growing guides
- Top 10 winter vegetables to grow
- Autumn and winter vegetables for your garden
- Growing spinach at home
Ready to plant? Browse our Vegetable Seeds.