When to Plant Tomatoes in Sydney

Tomatoes grow best in warm, sunny weather with plenty of well-drained soil and shelter from winds.

To get you on your way to a fruitful tomato season, we’ve prepared this guide on everything you need to know about planting tomatoes in Sydney.

When is the best time to plant tomatoes in Sydney?

Sydney enjoys a temperate climate with warm summers and no dry season.

This means that you can plant tomatoes in late spring/early summer.

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To give your tomatoes the best chance for growth over summer, we recommend planting in late spring, when the soil has warmed up a little, and after the last frost.

Keep in mind that in tropical and subtropical regions, tomatoes can be planted year-round.

What growing conditions suit tomatoes?

Tomatoes grow best in warm, sunny weather with plenty of well-drained soil and shelter from winds.

They can do well in a variety of soils, if grown under the right conditions.

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If you’re growing tomatoes on your balcony, patio or in containers, make sure there’s good sun exposure – otherwise they may not fruit properly.

Can you grow tomatoes in Sydney winter?

No, it’s too cold to grow tomatoes in Sydney winters.

Planting tomatoes in Sydney winters can only be done if you have a green house, or if you have a suitable space inside your house (e.g. a sunroom).

Otherwise, it’s best to grow other winter crops.

How late can you plant tomatoes in Sydney?

Tomatoes have a wide range of climates that they will grow in, so most tomatoes are able to be planted right through spring and summer.

If you plant your tomatoes once the weather starts to cool they may not grow to their full potential.

The best soil for growing tomatoes

When it comes to soil, tomatoes prefer rich and loamy soil with a ph level between 6 and 7.

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If your soil type is not suitable, then you can add compost, manure, or fertiliser to improve the quality of your soil.

Keep the planting hole small enough for all but about three inches of the stem to be covered by soil when you plant your seedlings.

Pest control

There is a range of pests that you may encounter during your tomato-growing venture.

These include fruit flies, aphids, whitefly, caterpillars, slugs and snails.

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Keep a close eye on your tomato plants and if you think you have a pest problem look into solutions that target your specific pest.

Fertilising tomatoes

Fertilisers aren’t necessary if you have well-prepared soil. If you do choose to use fertiliser, a balanced low nitrogen fertiliser will be ideal (for example, a 10:10:10 or a 5:5:5).

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Compost is the ideal input for your tomatoes, but again, it’s not strictly necessary—unless your tomato plants are looking unwell and their leaves are yellowing after about 2 months of proper care.

When to harvest tomatoes

About 10 to 12 weeks from planting, your tomatoes should be ready for harvest.

Note that if you leave them on the vine too long, they can split open due to over-ripening.

Therefore, pick the fruit when the skin is still firm.

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Steve Kropp

Based in Melbourne, Steve's passion is vegetable gardening, and he’s been writing about it for almost 5 years. He also loves all things DIY and is always looking for a new project. When not working on his own garden projects or blogging, Steve enjoys spending time with his family, cooking meals with produce harvested from his garden, and coaching his son’s footy team.


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