Growing Autumn And Winter Vegetables

April 15, 2022

Autumn vegetable seeds to plant

The beginning of cooler weather doesn't have to mean the end of growing your vegetables. Autumn is an excellent time of the year to sow those vegetable and herb seeds that love cooler conditions. These will be ready to harvest throughout Winter and Spring — providing fresh produce and ingredients for your home.

Getting your Winter vegetables to grow

With the arrival of the colder months, amateur and professional gardeners alike have a very specific set of difficulties. Cooler days, freezing nights and reduced daylight all make successfully growing vegetables harder. Here are some of the critical considerations for getting your Autumn and Winter vegetables to grow happily:

  • Sunlight

    Sunlight is essential for all vegetables — fruiting and flowering vegetables are pretty intensive and generally require full sun to produce abundant healthy crops. Winter vegetables are no exception, but leafy greens and root vegetables tolerate less sunlight and perform well in partially shaded areas.

    Remember that the sun is lower in its path across the sky in Winter and the day lengths are shorter — resulting in an increased amount of shade, especially if your garden has trees or high structures around it. Position your Winter garden in the sunniest section of your property, as long as it is not exposed to high winds or heavy frost.

  • Frost

    Frost has a critical impact on many plants, especially young ones that are fragile to temperature extremes. If you live in a climate with regular frosts, such as the southern states of Australia, ensure plants are established early so they can tolerate the temperature changes better. You can also utilise geo fabrics such as hessian to shield crops overnight or grow in hothouses or polytunnels if needed.

    When selecting your crop, keep in mind that some Winter vegetables can tolerate a bit of frost, and even improve the taste as a result. This is because frost can trigger certain plants into producing more sugars resulting in deliciously sweet harvests. Have a go harvesting some of your hardy crops after a frost next time on your snow pea, parsnip, carrots and brassicas.

  • Timing your planting

    It is important to recognise the full growing period of your plants. Consider the weather conditions from planting the seed to the expected harvest. Some leafy vegetables are ready for harvest in as little as six weeks, while some root Winter vegetables such as parsnip can take 18 weeks to mature. Check your seed packet for further details. Some of the longer maturing varieties such as broccoli may benefit from starting indoors if the weather is still too warm in the garden, this will ensure that they mature whilst the weather is still mild outside, reducing the chances of them bolting to seed.

  • Pests and diseases

    Generally speaking, there are fewer pests and diseases during the cooler months of the year, giving you much-needed relief from constant pest control. If you live in a warmer climate, you will likely experience pests, so keep an eye out for those hungry critters.

    Continue to ensure good air circulation through adequate spacing to minimise the growth of fungal diseases such as powdery mildew and leaf spot, and avoid watering the leaves of the plants. Try to water early in the morning to allow any excess water on the leaves to dry off so that they are not left damp overnight as trapped moisture will harbour diseases.

  • Maintenance

    Another advantage of growing vegetables in Winter is that evaporation rates slow down, which means your plants will not dry out as fast. You will still want to ensure a steady supply of moisture for your Winter vegetables to ensure that they continue steadily growing and have the best flavour and texture.

    Feed your plants with organic matter such as manure, fish emulsion and blood & bone regularly for lush growth. You generally want to reapply slow-release feeds such as poultry pellets every 4-6 weeks or as directed for established plants.

    Apply homemade compost around your crops to increase biological activity and improve the soil structure. A fortnightly dose of diluted seaweed solution or worm wee is also a great way to provide an additional kick to your plants without overfeeding them.

    Once you have harvested your garden, plant a green manure crop to improve the soil structure and replenish some of the nutrient levels before spring sowing. Dig them into the soil before they set seed to provide nitrogen and organic matter as they rot.

What are the best vegetables to grow in Winter in Australia?

If you have been asking yourself what seeds to sow in Autumn and Winter, in most regions, Autumn and Early winter is the perfect time to sow these vegetables and herbs:

  • Broccoli
  • Cabbage
  • Carrot
  • Cauliflowers
  • Endive
  • Kohl Rrabi
  • Leek
  • Lettuce
  • Onions
  • Parsley
  • Parsnip
  • Silverbeet
  • Snow pea
  • Spinach
  • Swede
  • Turnip

Planting from seeds is a great, affordable option. With fast-growing Winter vegetables, you’ll start to see the fruits of your labour in no time.

Winter is also the season to plant your Summer produce bulbs such as potatoes, asparagus, berry canes, shallots, strawberries and rhubarb. By planting these in Winter you will be rewarded with your own delicious produce come Summer time - raspberries anyone?

What vegetables grow in Autumn in Australia?

While you might think of leafy garden veg as Summertime produce, plenty of fast-growing green veggies can be planted and grown in Autumn.

Some of our favourites include:

  • Beetroot
  • Broad beans
  • Spinach
  • Radish
  • Peas
  • Kale
  • Cavolo Nero
  • Chinese cabbage
  • Cress
  • Asian greens: pak choi, bok choy
  • Rocket

When should I plant Autumn and Winter vegetables?

Getting your plants underway early before the cold weather sets in can help increase their robustness to cope with temperature extremes. However, beware of warmer season pests such as caterpillars and snails. You can get your planting underway once the Autumn weather turns crisp but not chilly, generally between March and April.