When to plant garlic in Sydney?

Growing garlic is one of the most rewarding things you can do in your garden.

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Like most vegetables, there are certain months of the year when planting garlic will yield the best results.

Here is a comprehensive guide on when to plant garlic in Sydney.

When to plant garlic in Sydney

Plant garlic in Sydney between March and April. The soil will be at about 10 degrees Celcius around this time, which is the optimal temperature for planting garlic cloves.

Most varieties of garlic require at least one or two months in the range of 0-10 degrees Celcius.

You can plant garlic as late as June. However, planting garlic in winter risks the crop not growing properly due to the days being too short.

Garlic planted in autumn is ready for harvest in late spring or early summer depending on the variety you choose.

How to prepare your soil for garlic

When planting garlic, make sure the soil is well-draining and rich in organic matter.

You may also want to add lime before planting if your garden soil is acidic. Garlic will thrive in an environment with pH levels between 6-7.

If you’re going to grow garlic in a raised bed or another container, make sure it has plenty of drainage holes.

How deep to plant garlic

Plant garlic cloves 2-3cm deep, with the pointy end facing upwards and space them 10-15cm apart. Leave the skin that covers each clove intact.

Cover with a 5cm layer of mulch, and water regularly until the plants are established, and ensure the soil doesn’t dry out.

It usually takes about two weeks for young garlic stems to emerge from the soil.

Types of garlic

Garlic is generally divided into two categories: hardneck and softneck.

  • Hardneck garlic grows clusters of cloves around a central stalk, which becomes woody as the plant matures.
  • Softneck garlic has a rounder bulb without a woody stalk.

The two types both come in several varieties with different flavours, textures and uses.

FAQ

When is it too late to plant garlic?

You can plant garlic as late as June in Sydney. However, planting garlic in winter risks the crop not growing properly due to the days being too short.

Can you grow garlic in summer?

Garlic is a cool-season crop; it should be planted in autumn or winter. Sydney summers are too warm to plant garlic, as the soil temperature needs to get down to 10°C. If you were to plant garlic in summer, not only would it not grow properly but it might also result in bulbs that don’t separate into individual cloves.

How long does garlic take to grow?

Garlic takes about 7-9 months to grow. It’s generally ready for harvesting in the spring or summer. To harvest garlic, pull it from the ground when the tops start to dry and turn brown. If you see lower leaves on your plant turning yellow or brown, that’s another sign that your garlic is ready for harvest.

Does garlic need full sun?

To produce big, bulbous garlic bulbs, garlic needs six to eight hours of full sun each day. If this isn’t possible, plant your cloves in the spot that gets the most sun. The cloves will produce smaller bulbs than they would in full sun.

Can you plant a garlic clove that has sprouted?

You can plant a garlic clove that has begun to sprout. Just make sure the cloves are firm and healthy and always select the biggest ones for planting.

What grows well next to garlic?

Garlic is a beneficial plant to grow alongside cabbage and other vegetables because it deters common pests like snails, aphids, and loopers. Garlic grows well in the same bed as cabbage, as well as spinach, dill, beets, kale, potatoes and other vegetables. Fruit trees, eggplants, tomatoes and peppers also make good companions for garlic.

What can you not plant next to garlic?

Garlic and its relatives are known to inhibit the growth of some plants, including asparagus, peas, beans and parsley.

Photo of author

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 up for a new project. When not working on his own garden projects or blogging, Steve enjoys spending time with his family, cooking delicious meals from fresh produce picked from his garden, and coaching his son’s footy team.