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We often talk about our efforts trying to grow good garlic here in Brisbane. I thought this was a common sense article with some sub-tropical variety recommendations at the end.

Article from LIFESTYLE:

How To Grow Garlic


How To Grow Garlic

 

Is an essential flavour in countless dishes, so why not have garlic fresh and organic in your own garden? Janie Varkulevicius shows us how...

 

If you haven’t planted your garlic yet, it’s high time you did. Garlic, like onions, is a day-length-sensitive crop, so autumn is the time to plant.

Looking back to the 1950s and 60s, garlic was barely used in Australia; now, thanks to the culinary influences of so many migrants from the Mediterranean and elsewhere, garlic has become an essential in every Australian kitchen.

We consume about 3500 tonnes of fresh garlic every year yet much of it is imported. This means it has to be treated with powerful, often toxic chemicals, such as methyl bromide, that attack the nervous system. Our quarantine laws demand this treatment in order to kill any biological or fungal threats to our farming industry. So the obvious answer is to grow your own garlic and avoid these toxins.

Eating fresh garlic improves heart health by lowering bad cholesterol in the bloodstream, reduces high blood pressure and combats infection. Just one or two fresh garlic cloves a day can promote good health, whereas processed minced, dried or powdered garlic does not give the same benefits.

Garlic is day-length-sensitive, which means that as daylight hours are declining as we head towards winter, the plants put on vegetative growth, producing leaves and roots. The spring equinox, September 21/22, marks the time when daylight hours begin to lengthen and the bulbing phase of garlic growth is initiated.

The size of the bulb or head of garlic is determined by the amount of leaves and roots the young plants have at this stage. The more leaves, the bigger the harvested bulb will be.

 

Planting and soil preparation

 

Garlic prefers a rich, well-drained soil that has been well dug over with no hard lumps to inhibit the new root growth.

In sandy soils some extra potash will be beneficial, but usually ample nitrogen and phosphate will suffice. A pH of between 6 and 7 will allow these nutrients to be available to the plants.

Blood and bone is rich in these nutrients, so dig in about a 2mm layer over your planting area — a heavy sprinkle — and incorporate it into the soil.

You can buy your garlic “seed” (in other words the cloves) from the greengrocer or purchase virus-tested cloves from nurseries or mail-order companies.

Break up your heads of garlic and separate the cloves. Choose the fattest cloves to plant, pointy end up, about 5–7cm deep. The skinny, small cloves will not be as vigorous.

Break the bulb into cloves. Plant only the large cloves (right) not the small ones (centre).

 

Plant the selected cloves about 10cm apart with roughly 20cm between your rows. This should give you about 50 plants for just one square metre — a good yield for such a small space.

 

Growing

 

Garlic has a very dense surface root system that can dry out quickly and is easily damaged by cultivation. As it offers little competition for weeds, garlic beds should be kept as weed-free as possible. Therefore a good mulching after planting is essential.

Compost such as mushroom compost or seaweed is ideal. Tea leaves and coffee grounds are also good as long as they do not compact and form a crust. Use your own and make friends with your local café — they may be kind enough to save some for you.

Whatever mulch you use, keep the bed weed-free and avoid deep cultivation around the plants.

In late winter/early spring, a side-dressing of blood and bone will keep those leaves and roots growing. Take care not to fertilise after the spring equinox (September 21), as the increase in day-length initiates bulb growth and leaf growth ceases. Once bulbing commences, an over-abundance of nitrogen (as in blood and bone) will lead to soft bulbs that will not store well.

 

Harvesting

 

Depending on where you live, harvest times will vary. In NSW it can be as early as November or in Tasmania as late as December/January. Victoria and South Australia are somewhere in the middle.

As the time approaches, keep an eye on your garlic and reduce watering, as an over-moist soil can lead to rotting bulbs.

Your garlic plants will show you when they need to be lifted; when the tops start to yellow and the neck of the bulb starts to get soft and papery it’s getting to the right time. When the plant
has about four or five green leaves left it is time to harvest.

The bases of these leaves form the “tissue-paper” covering to the bulb. If you leave them longer they may open up and split.

 

Storage

 

The most important step in storing your garlic is to dry and cure it well. Choose a dry, airy spot to hang your plaits or use old orange (net) bags to hold your bulbs. Keep them cool and dry.

 

Cultivars

 

Queensland gardeners can find growing garlic challenging. In subtropical regions the day-length does not vary widely as it does further south. The cultivars Glenlarge and Southern Glen are good selections for the subtropics as they are day-neutral.

The hard-neck cultivars, those that produce a flower head or scape, grow best in areas with cold winters. They have a superior flavour but will store for only 3–4 months. Soft-neck garlic is easy to plait (there is no stiff flower stem), can be stored for 6–8 months and performs well in milder climes.

There are many cultivars to choose from, so get on the net or consult your local nursery.

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Replies to This Discussion

It is a good article, thank you Lissa! I have found that August is around the time my plants start to die off.

A couple of years ago some of us clubbed together and bought a consignment of soft-neck Garlic of a couple of varieties. Few of us had any worthwhile success with it - there's some posts on this forum about it. By 'success' I mean the crop justifying the amount of money and time invested in it.

On and off for the last 30 years I've grown Garlic. Mostly it has been Elephant Garlic - not a true Garlic but near enough for me. Usually it has been a good crop but Elephant has this weird 3-stage life-cycle meaning it's not as simple as planting some cloves and standing back to await results. Supposedly it likes cooler climes but it has performed better for me than any other I have tried.

If you've tried to grow plants from the imported cloves that you will find at the green-grocers, it is rarely successful. I hear it is because the cloves are dipped in some kind of herbicide which stops them from growing. If you want to grow a crop from bought cloves, buy organic/biodynamic and they will grow for you.

Have you tried either of the two recommended: Glenlarge and Southern Glen?

I've never had success even with the giant ones.

Just googled Glenlarge and found some guy on FB called of course, Glen Large lol.

Here's some info on Glenlarge availability. All the way out at Greenmount. Think we've seen info on these people before.

And Southern Glen - The Lost Seed sell it but are out of stock at the moment.

I've left a voicemail and an email for the Glenlarge people. If I can buy a bulk lot I'll onsell it at cost at the GV.

They were the varieties we used when we tried it a year or three ago.

I'm 99%sure that glen large was the variety I planted with great success this year. I purchased from green harvest and got around 20 bulbs which was pretty much 100% strike rate. The bulbs were small but I haven't bought garlic since the harvest in early October. That said I'm pretty much out now... I'll chase down the records but I'd recommend whatever i planted.

I would quite happily buy some at your GVto eat or plant. Count me in.

Yet to hear back from these folk but will try to get hold of some. The GV is only two weeks away so don't hold your breath ;)

I always try to have garlic cloves planted throughout every bed and most large pots, to ward off the nasties.. I've never sucessfully harvested garlic but I think this year will be a winner, I've learnt so much more about gardening this passed year. 

Planting the cloves around March-April works and that's usually when it's available from suppliers.

I bought some glen large from green harvest. Actually I bought 500g! I couldn't see the logic in spending $13 including postage for two bulbs. Did that last year and it produced about 20 bulbs which was enough garlic for 3-4 months.

So for my needs 8 bulbs would be enough for a years supply of garlic. If anyone wants any let me know. Happy to sell at face value. Paid $40 for 24 bulbs Including postage. Ideally I'd like to keep half, so $20 for 12 bulbs. I'd love to go into full production but just don't have enough space!

Any takers let me know, you can pick up from my house or I can bring to next garden visit.
Ended up going into full production. Had over 200 garlic plants sprout!

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