growing and storing a year of garlic
MY HOMEGROWN CROP OF GARLIC gets me to almost February, and then it’s just not what it used to be. You know how it goes—you’ve bought late-winter cloves that start to sprout and just don’t feel as firm or weigh what they did before time took its toll. I don’t have a perfect storage spot; considering that, I do quite well.
But these days I lay in a supply in the freezer, too, following safe, sane methods—no, you cannot just pack it in oil and refrigerate! My tactics for growing, harvesting and enjoying a year of garlic. Both softneck and hardneck types are welcome here, by the way—dare I ask which camp you’re in?
Like any bulb, garlic is a little particular about above-ground storage conditions. Once it’s fully cured, commercially grown garlic is stored in the dark at about 32 degrees and 65 percent humidity, and depending on the species and variety, may last six months or even longer. (The ideal range often recommended for garlic storage is cool and dry, from 32-50 and 60-70 percent humidity.)
My very primitive basement—an old stone foundation, no heat except what’s given off by the furnace—is a bit too warm and can be damp, but I have tried hanging the garlic heads in mesh bags from the rafters (as I have with onions). Even better, though, is a barely heated room above my garage, which stays around 40. Don’t put all your harvest in one spot if you’re not sure how it will fare; experiment with your two or three best possible spots.
into the deep freeze
IN RECENT YEARS I’VE FROZEN a portion of my harvest, trying a few methods gathered from university extension services and my collection of preserving books. Important note:
Even at below 40 degrees, such as in the refrigerator, you run the risk of harmful bacteria forming after about a week, including spores of Clostridium botulinum, the cause of botulism. Oil-packed peeled garlic sold in the market contains a preservative, such as citric acid. Achieving safe preservation this way is best left to commercial packers.
(Ditto with your oil-packed sun- or oven-dried tomatoes—something I shudder when I think I did for many years. Better to dry the tomatoes, pack them crisp in airtight bags, then soften a week’s worth at a time in oil before using. Herb-infused oils, particularly those with garlic, run the same risk.)
The trouble: bacteria can form in water droplets trapped within the oil, says the National Center for Home Food Preservation. Plus garlic is a low-acid food (therefore more prone to bacteria formation), and the low-oxygen conditions that bacteria loves are ideal thanks to the oil packing. A perfect storm.
- Whole, unpeeled cloves can be frozen as-is at harvest time, then thawed and used as needed. But I prefer to peel each batch, toss them lightly in oil and freeze them in bags or jars (above). I don’t thaw my whole cloves before cooking with them, but roast or slowly saute them, or drop them into things like soups then locate and kind of mash them against the side of the pot with a fork or back of a spoon once they soften.
- Some people prefer the convenience of making a log or small brick of chopped garlic—not unlike my parsley logs—and slicing off just what is needed for a recipe.
- Likewise, a puree of garlic and olive oil can be frozen like my other pestos, in cubes or small containers. (The University of California at Davis recommends 1 part garlic to 2 parts oil, for a sauté mixture that remains safely frozen but is soft enough to scrape the needed amount off at any time.)
- With all freezer methods, freeze immediately after preparation; do not refrigerate or store at room temperature even briefly first.
- Sometimes in midwinter, if I see that I have too much garlic and onions still in storage and worry they won’t last, I freeze them in bags or jars, as whole unpeeled cloves, this way.
- A pdf of other ways to safely preserve garlic, including drying, from University of California.
the cultivation of allium sativum
GARLIC COULDN’T BE EASIER TO GROW: Plant like any bulb in fall, a few weeks before frost is in the ground; topdress with organic fertilizer when shoots start really growing in spring; keep it well-watered during active growth; weed well. The details:
hardneck versus softneck: which to grow?
SOFTNECK GARLIC (Allium sativum), the common type of supermarket familiarity, has a row of largish outer cloves and a row or two of inner small ones. It would keep better than what I grow, but I like the bigger (though fewer-per-head) cloves of the hardneck kind (shown above), which also has the bonus of producing scapes (flower stalks that you cut off and eat before bloom) in early June or thereabouts.
My reason: Hardneck garlic (Allium sativum var. ophioscorodon) is better-adapted to Northern winters (its long roots–or at least before I trimmed them after curing–hold it in the heave-and-thaw ground especially well), and frankly I just hate all those tiny inner cloves of softneck at peeling time. Nor does comparatively puny softneck make as nice a roasted head of garlic as the bigger-cloved kind.
time to order: garlic sources
OCTOBER IS PLANTING TIME in my Zone 5B, late in the month, since about a month before frost is in the ground is perfect timing. Order early, though, for best selection. Eventually, if all goes well, you’ll achieve garlic independence (where you have enough heads for eating and to supply your own “seed” cloves). Some sources of organic “seed” garlic, meaning bulbs to divide up into cloves for planting.



Hey
I let my garlic dry outside in a covered area in the shade all intact with stems and leaves then store them in our under the stairs small pantry .temperatures are about 65+-and we use them thru the year …never have frozen any and my crop is usually about 80+- …this year we have more .
I do give some away to friends and neighbors ! Very rarely is there any that start sprouting but it has happened and very few. We live near Vancouver BC
Hi Margaret, my harvest is sprouting in their baskets in my cool pantry, sigh. I grow very big-cloved hardneck varieties like White German and Purple Russian and Music. Anyway, I read all your material and have a question: You say you peel freshly cured cloves and toss lightly with olive oil and freeze. How is this different than water molecules getting trapped with the oil in the other freezing method that uses olive oil and threatens botulism? What am I missing here? Please explain to this non-scientist.
Cheers
Hi Margaret, thanks for your many useful suggestions! So far I don’t grow enough garlic to run out (my garlic patch has room for only about 90 plants and I always give some away), but I hope to start another patch this summer. If before next harvest I have some that need serious storage, I would like to try vacuum packing them. Have you tried that? My Food Saver is a big, inconvenient machine, but I love how well vacuum packing works for various things. I’ve been seeing ads for a smaller machine that I may try. I would like to hear your thoughts about vacuum packing garlic!
I have not tried it, and Michigan State University and other sources warn that onions, garlic and mushrooms are not candidates for vacuum sealing because of risk of botulism. One maker of vacuum sealers also says that, I found in a quick search.
I’m in camp hard neck, zone 7b/8a (I’ve been moving southward it seems, without moving at all). My harvest doesn’t make it past February either. With only a small city kitchen garden, the harvest isn’t huge to begin with and I always feel the need to share the bounty. I look forward to trying to freeze some garlic this year. I still have plenty of pesto though!
Thanks for the great info. Does all of this work with elephant garlic (actually a form of leek) as well?
I don’t see why not.
I live in high mesa country in New Mexico. A 40 degree swing in temps between day and night most of the year–going to 30 below zero in winter and lately, in the 90s in summer. It is always very dry here.
I plant both soft and hardneck garlic in the fall. I braid the softneck after curing and hang in the pantry, which is cooler than the house, but not as cool as the cellar. Even though some of the cloves have shriveled and some have small green sprouts in them–many cloves are still edible in June and July. Both varieties have large and easily peeled cloves. I’ve forgotten the varieties, but may have a record somewhere.
Thank you! This was very helpful as I’ve never thought of freezing my garlic. Last year I didn’t cure it properly and had to toss most of my garlic. This year will be better!
As usual,Margaret very direct to the point and easy to understand
You don’t mean to imply that softneck garlic will not produce scapes, but longneck will, right?
Only hardneck varieties (not softneck) will produce a crop of scapes, correct.
I plant my hardneck garlic in August, here in the land of the Nipmuc people. I figure that if I left it in the ground in July (and I have – whoops!), my usual harvest time, it would just re-start its cycle right then, and be just fine. Why stress about storage conditions, and mixing up varieties in unlabeled paper bags and all that? I harvest them in July, replant in August, mulch well. They come up soon and stay green over the winter and then spring into action in April.
How do you store garlic for replanting the next year’s Autumn?
I guess this means how do I harvest, overwinter, then replant the following Fall?
I’ve missed so much and many are still in the ground, each clove sprouting to make a new plant…
Hi Mark. It isn’t typically stored for a year then replanted, because the cloves that form each head will dry out, start to sprout or otherwise lose vigor in storage that long (I am assuming you mean it would be out of the ground more than a year). Rather the recently harvested bulbs are cured for just a couple of months until planting time (so harvested around July and planted around October or November).
I’m not clear if you are saying that you missed harvesting the 2019 crop and it’s still in the ground, and sprouting? Some people (including some permaculturists) grow it as a perennial (which it is if left to its own devices, not cultivated by us) and don’t harvest expect wheat they wish to use in cooking, and only after the bed really builds up first. I tried to find a resource for you to read about that and could only find this blog post.
Early winter here, didnt get any planted in the ground. Ever plant inside? Thinking about planting in pots in unheated garage as experiment. Is spring planting an option? Have some I didnt harvest, I plant it randomly in flower beds. Ever pick 2nd year? Love garlic, no great planting succes3yet tho. Thank u!
Hi, Anita. Is the ground really, really frozen or ??? (I would be tempted to try to get it into the ground if I could, but …). If pots I would think really, really big pots — for the insulation factor (even big pots are always like a zone colder or so than in the ground).
I just picked out some garlic at the grocery store and planted it. What is the difference between that and ordering it? I harvested and it is great
First, grocery-store garlic may have been sprayed with something to retard sprouting for long shelf life, which it sounds like yours wasn’t. Second, you probably don’t know the variety (or whether it was organically grown). So it can be a crapshoot — but it sounds as if you won!