growing and storing a year of garlic

garlic with press 2MY 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.

My very primitive basement—an old stone foundation, no heat except for the little bit given off by the furnace—is a bit too warm, but I have tried hanging the garlic heads in mesh bags from the rafters (as I have with my onions). Even better 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

THIS YEAR I’M FREEZING 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, then thawed and used as needed. Last fall I also peeled a batch, tossed them lightly in oil and froze in bags. Looking good!
  • I’m more optimistic about the convenience of making a log or small brick of chopped garlic—not unlike my parsley logs—and slicing off just what I need 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 this way. The same could be done with a portion at harvest time.

the cultivation of allium sativum

GARLIC COULDN’T BE EASIER TO GROW: Plant like any bulb in fall; topdress with organic fertilizer when shoots start really growing in spring; keep it well-watered during active growth; weed well. The details:

'German Extra Hardy' has few cloves, each very large

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 May 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.

how do the varieties compare?

HAVE A FAVORITE GARLIC? Add your ratings to Cornell’s “Vegetable Varieties for Gardeners” variety-comparison database of more than 70 garlics. Unlike tomatoes and squash, for instance, which have loads of ratings from commenters, the garlic department could use our feedback!

time to order: garlic sources

OCTOBER IS PLANTING TIME, since about a month before frost is in the ground is perfect timing. Order now—and in coming years, order even earlier 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). I got there last year.

September 8, 2010


  1. judi says

    Such great information…I am learning all the time. I just recieved my order of garlic to plant. Last year I planted in the spring with the rest of the garden…..let’s just write that off as a mistake and forget about it…..Oh and did I mention I have garlic loving squirrels in my garden. So now they go into the enclosed and electric fences garden. Here hoping for a vampire free next summer…thanks for the info.

  2. Bonny says

    My favorite way to freeze less than perfect garlic is to chop it in the food processor, with a small amount of oil and salt. Put it in a small zip loc freezer bag, smash all of the air out, put it in another bag and freeze flat, maybe 1/4 inch thick. That way I can break off whatever size chunks I need. It will keep over a year this way.

  3. Beth says

    So are you saying it’s ok to chop garlic, add chopped fresh basil and olive oil, and freeze in ice cube trays then transfer to a freezer bag?
    Love your blog!

  4. lin says

    Thanks. Very good ideas on your blog. I pulled apart cloves and planted then root down. Once they had been covered with dirt, I covered them with straw. Hope the animals don’t get after them. I may have made a mistake as I dried my garlic in August; then I put in mesh bag and hung off a shelf in my dark storage room. But it is only (at the least) 62 degrees there. I don’t know anything about making a log and freezing it. Sounds like the best way for me.

    • margaret says

      I bet it will all be fine, Lin. Mine has sat in my barn curing since August, too, and I will plant the cloves I want for next year’s harvest this week, then store the rest inside in a cool spot.

leave a reply

Your email address will not be published. Required fields are marked *