How to grow garlic at home

Garlic is low-maintenance, highly productive for the ground it occupies, and one of the most valuable crops to grow in terms of the cost difference between home-grown and shop-bought quality. It needs almost no attention from planting through winter — and it's one of the few crops you can genuinely set and (mostly) forget.

Why garlic is ideal for beginners

Unlike many vegetables that demand regular attention — thinning, watering, feeding, training — garlic largely looks after itself once planted. You put the cloves in the ground in autumn, apply a light mulch, and apart from weeding and occasional watering in spring, the plants grow through winter on their own. They're cold-hardy in most temperate climates and actually need a period of cold to develop properly (a process called vernalisation, which triggers the plant to form a divided bulb rather than a single round one).

The return on investment is excellent. A single packet of seed garlic — typically 8–12 bulbs, each split into 6–10 cloves — can plant a generous bed and yield well over 50 bulbs. Home-grown garlic, cured properly, stores for months without any additional effort. You can replant your finest bulbs each autumn and the crop effectively becomes self-sustaining. For guidance on saving your own stock, see our seed saving guide.

Softneck vs hardneck garlic

All cultivated garlic belongs to Allium sativum, but the two main types behave and store quite differently.

• Softneck garlic (subspecies sativum, also called artichoke garlic, and subspecies ophioscorodon's Silverskin group): Has a pliable neck and stem once dried, which is why it can be plaited. It typically produces more cloves per bulb (often 10–18, arranged in multiple layers), stores exceptionally well (6–12 months when cured properly), and is better suited to warmer and milder climates. It doesn't produce scapes. Varieties include 'Provence Wight', 'Early Purple Wight', 'Solent Wight' and the classic Silverskin types used for plaiting.
• Hardneck garlic (subspecies ophioscorodon): Has a stiff central stem (scape) that it sends up in early summer — an additional bonus crop. Hardneck varieties typically have fewer, larger cloves per bulb (4–12, arranged in a single layer around the central stem), more complex and often more intense flavour, and perform better in cold climates with genuinely cold winters. They store for a shorter period (4–6 months typically). Types include Rocambole (e.g. 'Chesnok Red'), Purple Stripe (e.g. 'Metechi'), Porcelain (e.g. 'Carcassonne Wight') and Marbled Purple Stripe.

As a rule: if you have cold winters and want the most flavourful garlic for kitchen use, grow hardneck. If you're in a mild climate and want the longest storage and the ability to plait, grow softneck. Many growers plant both.

Always use seed garlic, not supermarket bulbs

Seed garlic is sold by many garden centres and online suppliers from late summer through autumn, giving you the right planting window. It's sold by the bulb, half-kilo or kilo, with a wide range of named varieties to choose from. Pick varieties specifically suited to your regional climate where possible.

Planting garlic — step by step

1. Choose and prepare your bed. Garlic likes well-drained, fertile soil with a pH of around 6–7. If your soil is heavy clay, work in grit and compost to improve drainage — standing water will rot the cloves. A raised bed or mounded row works well in wet climates. Avoid beds where onions or other alliums grew the previous year.
2. Add compost, not fresh manure. Work in well-rotted compost or a balanced general fertiliser before planting. Fresh manure can encourage the soft, sappy growth that rots and attracts pests. Rake the bed level and firm lightly.
3. Split bulbs into cloves just before planting. Break each bulb apart gently, keeping the papery skin intact on each clove. Discard any very small inner cloves (they'll produce small bulbs) and any that are damaged, soft or show mould.
4. Plant pointed end up. Use a dibber, your finger or a pencil to make holes about 5–8 cm deep. Place each clove pointed tip up, flat basal plate facing down. The tip should sit 2–3 cm below the soil surface. Space cloves 15–20 cm apart in the row, with 25–30 cm between rows.
5. Cover and firm gently. Fill holes back with soil and firm the surface. Label the row with the variety name and planting date.
6. Mulch lightly. Apply a thin layer (3–5 cm) of straw, compost or leaf mould to suppress weeds and retain moisture. In cold climates this also protects the cloves from the most extreme frosts, though garlic is generally quite frost-tolerant once rooted.
7. Water in if the soil is dry, then leave. Autumn and winter rainfall typically supplies what garlic needs. Begin watering again in spring if conditions are dry, particularly from April onwards when bulbs are actively swelling.

When and how to plant

Timing depends on your climate. The key principle is that garlic benefits from a period of cold (ideally sustained temperatures below 10°C for several weeks) to trigger proper bulb differentiation — without it, you may get a round, single-clove "round" rather than a divided bulb.

• Temperate climates with cold winters (UK, northern Europe, northern USA/Canada, southern Australia, New Zealand): Plant in autumn — typically October to November in the Northern Hemisphere, April to May in the Southern. The cloves root before winter, are dormant through the coldest months, then surge into growth in spring.
• Mild-winter climates (Mediterranean, coastal California, subtropical Australia): Softneck varieties work better as they're more tolerant of mild winters. Plant as late as possible in autumn or in early winter to maximise any cool weather. Some growers chill cloves in the fridge for 4–8 weeks before planting (a process called "vernalisation") to simulate winter cold.
• Cold but short-season climates: Spring planting (as soon as the ground can be worked) can work, but yields are often lower than autumn-planted garlic because the vernalisation period is shorter. Use early-maturing softneck varieties.

Container growing: Garlic grows well in containers — a deep pot (at least 20–25 cm deep) or a window box can support a useful crop. Use good-quality compost with added grit for drainage and plant cloves 10–15 cm apart. Containers may need moving to a sheltered but cold spot in winter in mild climates, and brought in from hard frost in pots with limited soil volume. Water regularly in spring and apply a high-potassium liquid feed as bulbs begin to form.

Care through the seasons

Garlic grown in well-prepared soil needs very little intervention from autumn through early spring. Once green shoots emerge in late winter or early spring, a few simple tasks keep the crop on track:

• Weed carefully and regularly. Garlic doesn't compete well with weeds, particularly in spring when bulbs are swelling. Hoe shallowly between rows — garlic roots are not deep, so avoid disturbing the soil too close to the stem.
• Water in dry spells. In spring and early summer, when bulbs are actively enlarging, consistent moisture matters. Very dry springs are the most common cause of small bulbs. Once the foliage begins to die back, stop watering to allow the outer skins to dry down.
• Feed lightly if needed. In poor soil or containers, a balanced liquid feed applied 1–2 times in spring can help. Avoid high-nitrogen feeds, which promote leaf growth at the expense of bulb size.
• Harvest hardneck scapes. In late spring to early summer, hardneck garlic plants send up a central flower stalk called a scape, which curls in a loop or spiral. Remove scapes by snapping or cutting them off when they have made about one complete curl — leaving them on redirects the plant's energy into flowering rather than bulbing, reducing yield. Scapes are a genuine culinary bonus: mildly garlicky and tender, they can be used in stir-fries, pestos, compound butters, and pickled.

Pests and diseases

Garlic is relatively trouble-free, but a few problems are worth knowing:

• Garlic rust (Puccinia allii): Orange-yellow pustules on the leaves, appearing typically in late spring or summer, often in wet or humid conditions. It weakens the plant and can reduce bulb size, but rarely kills. Good air circulation between plants helps. Remove and dispose of badly affected leaves; don't compost them. There are no curative treatments; copper-based sprays may slow spread if applied at first signs. Rust is more problematic in certain regions — check whether your area is known for it before choosing varieties.
• White rot (Streptinia cepivorum): A serious soil-borne fungal disease that causes white fluffy mould at the bulb base and rotting of the roots. Affected plants yellow and collapse. White rot persists in soil for 20 years or more, making crop rotation critical once it is present. There is no effective chemical control for home growers. Buy certified disease-free seed garlic and practise strict rotation (never grow alliums in an affected bed again).
• Allium leaf miner and onion thrips: Allium leaf miner (Phytomyza gymnostoma) causes pale streaks or flecks on leaves; thrips cause silvery patches. Both are primarily cosmetic at low levels but can allow secondary infections. Fine mesh netting over the crop during the susceptible periods offers the most reliable protection. See our natural pest control guide for more.
• Birds: In newly planted beds, birds sometimes pull newly planted cloves out of the soil, apparently attracted by disturbed earth. A temporary covering of horticultural fleece or netting until the roots are established solves this.

Harvesting, curing and long-term storage

When to harvest: Garlic is ready when roughly half the leaves have yellowed and died back while the other half are still green. At this stage, the bulb wrappers are papery but the bulbs are well-formed. Harvest too early and the skins won't have developed properly; too late and the cloves may start to split their wrappers in the ground, reducing storage life. In the Northern Hemisphere, maincrop garlic is typically harvested in June or July; in the Southern Hemisphere, December to January.

Use a fork to loosen the soil before pulling, working alongside the plant to avoid spearing the bulbs. Don't pull by the stem alone. Brush off loose soil but avoid washing — the bulbs need to dry.

Curing is not optional if you want long storage. Lay or hang the garlic in a single layer in a warm (20–25°C), airy, shaded location — a covered porch, a shed with good airflow, or under a polytunnel with the sides open. Leave for 3–4 weeks until the outer wrappers are completely papery, the necks are dry through, and the stems are rigid (hardneck) or limp and fully dry (softneck). If the neck is still at all damp or soft, keep drying — rot sets in at storage if it isn't fully cured.

Storing: Softneck varieties can be plaited using the flexible dried stems and hung in a cool, dry, airy spot — the traditional and effective method. Both types can be stored in mesh bags, paper bags or wooden crates in a cool (10–15°C), dry, dark location. Never store in sealed plastic or the refrigerator: sealed containers cause sweating and mould, while the fridge is too cold and humid and will encourage sprouting. Softneck garlic stores for 6–12 months; hardneck for 4–6 months. Towards the end of storage, check bulbs regularly and use any that are beginning to soften or sprout.

Saving cloves for replanting: Select your finest, largest bulbs from the harvest and set them aside before eating. The largest cloves from the largest bulbs will produce the largest plants the following season — over successive generations this selection genuinely improves your stock. Keep them stored in the same conditions as eating garlic until planting time. For a full guide to saving and selecting vegetable stock, see our seed saving guide.

• Buy certified seed garlic — not supermarket bulbs.
• Choose softneck for mild climates and long storage; hardneck for cold winters and better flavour.
• Plant in autumn for most climates; point cloves upwards, 5–8 cm deep, 15–20 cm apart.
• Weed regularly in spring and water during dry spells as bulbs swell.
• Harvest hardneck scapes when they make one full curl — eat them fresh.
• Lift when half the leaves have yellowed; cure for 3–4 weeks before storing.
• Store cured garlic cool, dry and dark — never in sealed plastic.
• Save your best bulbs to replant each autumn and improve your stock over time.