When to Harvest Garlic
Garlic is ready when its leaves show the right balance of yellowing and green, not simply when a calendar date arrives. Most British crops are harvested between June and August. Lift bulbs carefully, cure them in a dry airy place and store only sound, fully dried heads for the longest keeping quality.
Watch garlic from late May onwards rather than setting a fixed harvest day. In many British gardens, autumn-planted garlic matures from June to July, while spring-planted bulbs may be later. The key sign is that the lower leaves have yellowed or turned brown, while several upper leaves remain green. Those green leaves form the protective wrapper layers around the bulb. If every leaf has died back, wrappers may have broken down and cloves can separate in the soil. If all leaves are still lush green, bulbs may not have reached full size. Check a few plants only when conditions and leaf colour suggest they are nearly ready, especially after a spell of dry weather.
Stop routine watering about two weeks before you expect to lift the crop, unless plants are severely drought-stressed. Drier soil and foliage help bulbs begin their curing process. Remove weeds carefully, but do not cut leaves or bend them over in an attempt to hasten ripening. On a dry day, loosen soil 10 to 15 cm away from each bulb with a hand fork, then lift it gently by supporting the bulb. Pulling only on the stem can snap it and leave the head underground. Shake off loose soil with your hands, but do not wash bulbs. Their outer skins protect them during storage and should remain as intact as possible.
Inspect one lifted bulb before harvesting the whole row. Carefully brush away enough soil to see whether it has formed a firm, well-defined head with plump cloves beneath the wrapper. If the bulb is small or cloves are not yet distinct, leave the rest for another week and check again. If wrappers are beginning to split and cloves are pushing apart, lift the remaining crop promptly. Hardneck garlic may produce curly flower stems, known as scapes, earlier in the season. Cut these with secateurs once they curl, leaving the leaves intact, so plants can direct energy towards bulb development. Use scapes promptly rather than treating them as a storage crop.
Cure garlic straight after lifting. Lay bulbs in a single layer or hang small bundles in a dry, shaded place with good airflow, such as a covered porch, airy shed or greenhouse with effective ventilation. Keep rain, direct hot sun and damp off the bulbs. Leave roots and foliage attached during curing because they help the bulb finish drying. Space bulbs so air can circulate around every head. Check them every few days and remove any that soften, show mould or have damaged wrappers. Curing commonly takes two to four weeks, depending on weather and ventilation. Bulbs are ready when the stems feel dry and papery and outer skins rustle when handled.
Once cured, trim roots lightly and cut stems with clean secateurs, leaving a short dry neck unless you plan to braid suitable softneck garlic. Brush away loose dry soil without stripping sound wrappers. Sort bulbs by condition and size. Use damaged, split or small bulbs first, because they will not store as long as firm, intact heads. Keep your best healthy bulbs aside for replanting only if they came from a reliable, disease-free crop. Do not add diseased garlic material to the compost heap or bin. Clean tools and remove all crop debris from the bed, then avoid growing alliums in that position for several years if you have had recurring problems.
Store fully cured garlic in a cool, dry, airy place out of direct light. A mesh bag, open basket or slatted tray allows air movement better than a sealed container. Avoid a damp shed, refrigerator or warm kitchen cupboard, as these conditions shorten storage life or encourage sprouting. Check stored bulbs every few weeks and remove any that soften. Storage length varies with variety: some softneck types keep longer than many hardneck types, and conditions matter greatly. Keep a note of lifting date, variety and storage performance. This helps you choose varieties that suit your garden and household use, rather than judging success only by bulb size.
Frequently asked questions
Can I harvest garlic when the leaves are completely brown?
You can, but storage quality may be reduced. When all leaves have died, the protective wrappers around each bulb may be thin or split, allowing cloves to separate. Harvest is usually best when lower leaves are yellow or brown but several upper leaves remain green. Check one bulb if you are uncertain.
Should I wash garlic after lifting it?
No. Washing adds moisture and can damage the dry protective skins needed for curing and storage. Shake or brush away loose soil gently, then dry the bulbs in an airy, shaded place. Once cured, you can remove remaining loose soil with your fingers without stripping the outer wrappers.
Why are my garlic bulbs small?
Small bulbs can result from late planting, poor light, weed competition, dry conditions during growth, shallow planting or a variety unsuited to the site. Garlic also needs time to establish before bulbing. Improve soil with garden compost, keep beds weed-free and choose healthy planting cloves. Harvest timing cannot make undersized bulbs grow larger.
General guidance for UK home gardens and allotments. Conditions vary by region, soil and season; the RHS or a local garden centre can give site-specific advice. Page updated 19 Sep 2026.