When to Harvest Garlic (5 Signs Your Crop Is Ready)

Hardneck garlic planted in October or November is usually ready in late June through early July. Softneck varieties run a couple of weeks later, often into July and August depending on zone. If you're south of Zone 6, the window starts earlier; up in Zone 4 or 5 you may not pull until early August.

The calendar gets you in the right month, but the plant itself is the actual signal. Once you see the first lower leaves yellowing, start checking every couple of days.

The signal you're watching for: the bottom three or four leaves on each plant turning yellow and brown, while the top three or four leaves stay green. Each leaf on the plant corresponds to a wrapper layer on the bulb underground, so half-green and half-brown means roughly half the wrappers are still intact and protective.

Those intact wrappers are what let your garlic store for months instead of weeks. Pull when about five lower leaves have browned and five upper leaves are still green - that's the sweet spot for both maturity and storage life.

If you let the plant go until all the leaves are dead, the protective papery wrappers around the bulb split open. The cloves separate inside the head, and a separated head will rot in storage within a few weeks instead of keeping for months. You can still eat the garlic - it just won't store.

This is the most common mistake new growers make. Garlic dying back looks like a plant that needs more time, when really it's a plant that's already past its prime. If you're not sure, dig one bulb to check.

If you're on the fence about timing, dig one plant and look at the bulb. A ready garlic head is plump, the wrapper is intact and tight, and the cloves are clearly defined under the papery layer. If the bulb is still slim or the cloves haven't fully separated under the wrapper, give the bed another week and check again.

One test plant tells you about the whole bed - garlic in the same bed almost always finishes within a few days of each other. If the test bulb is good, lift the rest; if it isn't, water normally and wait.

Slide a garden fork or spade into the soil four to six inches away from the stem and rock it gently to break up the root ball. You're not trying to pry the bulb out with the tool - you're loosening the soil around it so the bulb lifts free without pressure on the stem.

Once you feel and hear the roots release, set the tool aside and lift the bulb by the base of the stem with your other hand. Yanking by the stem alone snaps the neck off perfectly mature bulbs and leaves you with garlic that won't store. A fork is worth the extra thirty seconds.

Once a bulb is out of the ground, gently brush the loose dirt off with your hand. Don't pull at the wrappers and don't wash. Water at this stage is the fastest way to ruin a bulb - moisture trapped under the wrappers during curing causes rot, and washed garlic will not store for more than a few weeks.

The remaining dirt will fall off naturally during the curing process and you'll clean up the bulbs properly after they've cured for three weeks.

Move the harvested bulbs - stems, leaves, and roots all still attached - to a shaded, dry spot with good airflow. Hang bunches from twine, drape them across a section of chain-link or wire fencing, or lay them in a single layer on a screen. Whatever you use, keep individual bulbs separated by an inch or two so air moves around each one.

A garage, basement, covered porch, or shaded shed works perfectly. In humid weather, set a fan on low to keep air moving. After three to four weeks the stems will be papery, the necks dry, and the bulbs will rattle slightly when you handle them - that's how you know they're cured.

Wait three to four days after the last rain before you dig. Wet soil cakes onto the bulbs and traps moisture under the wrappers, both of which shorten storage life dramatically. A cloudy dry day is ideal - the bulbs go straight from cool soil into shade rather than baking in direct sun while you finish the row.

After three to four weeks of curing, trim the stems to an inch above the bulb and clip the roots flush with kitchen scissors. Brush off any remaining dirt and peel away the outermost loose wrapper layer. Store the trimmed bulbs in a mesh bag, paper sack, or open basket in a cool, dark, dry spot around 50 to 60 degrees. Properly cured hardneck stores for four to six months; softneck holds for six to eight.