Harvesting & Curing Garlic in Alberta

Reading the leaves

Each green leaf on a garlic plant corresponds to a layer of papery wrapper covering the bulb. Wrappers protect the bulb in storage — you want enough to keep cloves from drying out, but not so many that the bulb is overdue.

The harvest signal: 4–5 of the lower leaves have browned and shrivelled, but 4–5 upper leaves are still green and standing. That gives the bulb 4–5 layers of intact wrapper at harvest. In Alberta, this is usually late July through mid-August, depending on planting date and variety. Hardneck varieties (Music, Russian Red) are usually first.

Pull one bulb as a test. If the cloves are well-defined and the wrappers are tight, you’re ready. If cloves are still fused or the bulb feels small, wait another week.

Stop watering early

Stop watering 10–14 days before harvest. The drier soil firms up the wrappers and lets the bulb cure as it sits. Wet soil at harvest produces soft, easy-bruised bulbs that don’t store.

If August brings heavy rain near harvest time, lift earlier rather than later. Wet bulbs left in the ground rot fast.

How to lift

Don’t pull on the stem — the basal plate (the flat bottom of the bulb) snaps off and you lose individual cloves. Use a digging fork or spade, going in 15 cm away from the plant and prying gently upward. The whole bulb lifts, often with the soil ball intact. Brush off (don’t wash) loose soil.

Handle bulbs gently. Bruised bulbs rot in storage. Set lifted bulbs into a flat tray or basket; don’t pile them deep.

Curing

Curing is what separates good garlic from great garlic. The bulb continues drawing nutrients out of the leaves into the cloves for 3–4 weeks after harvest. Skip curing and bulbs are 30–40% smaller in storage than they could have been.

Hang whole plants — leaves, stem, and bulb intact — in bundles of 5–10 plants, somewhere shaded with good airflow. A garage, garden shed, or covered porch works. Avoid direct sun (cooks the bulb) and high humidity (promotes rot). Temperatures of 20–30°C are ideal.

Cure for 3–4 weeks. The neck (where the leaves meet the bulb) goes from soft and green to leathery and dry. The wrappers tighten and turn fully papery. The whole bulb feels firm and slightly lighter than at harvest.

Trimming for storage

Once cured, trim each bulb individually:

• Cut the stem 2–3 cm above the bulb.
• Trim roots flush with the basal plate.
• Brush off any remaining loose dirt or stained outer wrapper. Don’t over-trim — intact wrappers are what keep the bulb from drying out.

Storage

Store cured garlic in a cool (10–15°C), dry, dark place with good airflow — a basement, pantry, or unheated room. Mesh bags, baskets, or open boxes work; never sealed plastic, which traps moisture and causes rot.

Hardneck garlic stores 4–6 months at these conditions; softneck (less common in Alberta) stores 8–9 months. Toward the end of storage, cloves start sprouting — still edible but milder and softer. Use older bulbs first.

Save the largest, healthiest bulbs as next year’s seed garlic. Plant cloves from those in October. Over a few years, this selection process improves the strain’s adaptation to your specific garden.