Growing Garlic

Allium sativum : Amaryllidaceae / the onion family

Jan F M A M J J A S O N Dec
                P P    

(Best months for growing Garlic in USA - Zone 5a regions)

  • P = Plant cloves

September: Garlic can overwinter. Cover with a good layer of mulch . In areas where frost persists into March/ April, expect to harvest your garlic in June/July.

October: Garlic can overwinter. Cover with a good layer of mulch . In areas where frost persists into March/ April, expect to harvest your garlic in June/July.

  • Easy to grow. Plant cloves. Best planted at soil temperatures between 10°C and 35°C. (Show °F/in)
  • Space plants: 10 - 12 cm apart
  • Harvest in 17-25 weeks.
  • Compatible with (can grow beside): Beets, Carrots, Cucumbers, Dill, Tomatoes, Parsnips
  • Avoid growing close to: Asparagus, Beans, Brassicas, Peas, Potatoes

Your comments and tips

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16 Apr 23, Michelle (USA - Zone 9b climate)
In my zone, because it's warm, you need to do cold stratification in the frig before planting. I tried before with store garlic and it didn't work, now I bought softneck, put in the frig a few weeks and they are doing great.
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07 Dec 22, Paula (USA - Zone 10a climate)
I have never chilled mine and they do okay. I don't know the type as I have as I started with grocery store bulbs, but I have read that soft neck varieties do better in warm climates.
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04 Dec 22, (Australia - sub-tropical climate)
Probably make no difference. The thing is to use mature aged bulbs. Fresh new bulbs may not be as good as bulbs that have been out of the ground for a few months.
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16 Oct 22, Holly (USA - Zone 5b climate)
Can I plant garlic bulbs in pots (that will remain outside throughout winter) in zone 5b?
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20 Oct 22, (USA - Zone 5b climate)
If you can grow it in the ground you can grow it in a pot usually.
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14 Oct 22, David Kalet (USA - Zone 10a climate)
I just moved to Naples Florida. I am looking for hard neck and soft neck varieties that would grow here. I am thinking that planting on December 21 and harvesting June 21 maybe a good start. It doesn't get frosty here, but perhaps vernalizing the bulbs in the refrigerator for 40 days may work. Appreciate any thoughts.
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18 Nov 22, Ruth A Hersh (USA - Zone 9a climate)
Garlic grows GREAT here in Florida, but only the soft neck varieties, & you must give them 8 weeks artificial winter in a refrigerator prior to planting. Preferably one without ripening fruit as they put off gasses that can hurt your garlic whilst chilling.
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06 Nov 22, Dave in California Zone 10A (USA - Zone 10a climate)
David, I also live in Zone 10A but in California (hot and dry, average 10 inches of rain per year), and please IGNORE the Aussie who thinks we do not check our Zone 10A recommendations. I have been container gardening here for a couple years and am still learning, with notable mistakes being not knowing correct planting/harvesting times (I now use this website over anything on a seed package), overcrowding, and overwatering. I have successfully grown garlic in Zone 10A, from store bought garlic cloves that were sprouting tiny green shoots, and they produced but the heads and cloves were only about half the size as the original store-bought, which might be caused by the climate, or more likely from be the mistakes I was making trying to grow new things like crowding, overwatering, and not knowing when to plant or harvest. Anyway, give growing garlic a try and my best advice is to avoid overwatering. I had a lot of cloves rot instead of growing and I think it was because of overwatering. After doing more research I'm trying to grow garlic again by planting some in NOV, and some in DEC, and really monitoring the watering. Even though my garlic was half sized, it still tastes great, so I would rather have half sized garlic I can grow myself than not growing garlic.
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20 Oct 22, (Australia - sub-tropical climate)
If you had looked up Garlic for your CLIMATE ZONE 10a you would see that they do not recommend any planting time. You don't have the climate for it, is what that says.
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18 Nov 22, Ruth A Hersh (USA - Zone 9a climate)
Garlic grows fine in zone 10 as long as you refrigerate aka false winter it for 8 weeks prior to planting, & it MUST BE Softneck in zones 9 & 10.
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Showing 41 - 50 of 136 comments
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Heres an answer for garlic, I grow about 300 plants a year and get good results with about 90% of the cloves coming in at 5cm in diameter plus. Season. Garlic takes up to 9 months to mature. Plant in autumn, late March to May, harvest November to December. Clove selection. Plant only the largest cloves, at least the size of your top thumb joint, I have big hands so I plant cloves 2- 2.5 cm across. Its easy to eat the biggest and the best, its better to plant the biggest and the best. Spacing. I plant 15 - 18 cloves per square metre, 25cm apart in rows 25 cm apart. With 30 cm + paths between 4 rows. It's easy to crowd them, and the yield in terms of weight may be much the same, but bigger garlic are a lot more fun and much easier to use in the kitchen. Sunlight. Whilst garlic can tolerate low sun during the winter months it needs 8 hours direct sunlight during the early and late growth stages. So lots of clear sky when it's maturing, September onwards. If your nutrition is right, (and soil acidity is right) then water could be the problem. While not much water is needed in winter, the ground should be kept moist through the season, especially in spring. A shallow watering is best the roots don't go down more than 30 cm max. Once to twice week during the maturing season. We cant control the weather, but avoid flooding (and applications of nutirients) during the final few weeks to lessen the chance of fungus attacks and sprouting. Garlic likes a moderate amount of lime (dolomite), you can rely on the recommended amount at least two weeks before planting and once every three years. Maturity. Look for tops fading in colour, a weakening of the stem near the base and a flattening of the top of the bulb when (gently) exposed Thats a lot and there's a lot more. It's a labour of love and a lifetime. And I'm sure others will have other suggestions, this is just a framework of what has worked for me. Planting at the moment actually. Regarding shallots most of the above also applies but Im not much of an authority. Shorter season length, but most of the above applies. I plant under the same conditions as garlic but only a few dozen and get good results.

- Ken WIlson

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