From Clove to Bulb: A Complete Guide on How to Grow Garlic

Unlike many vegetables that demand constant attention, garlic is remarkably forgiving. I’ve grown it successfully in heavy clay soil, in raised beds and even in containers on a balcony. The secret isn’t some complicated technique or expensive setup. It’s about understanding what garlic actually needs and working with our British climate rather than against it.

What makes garlic particularly brilliant for UK gardeners is that it thrives in our cool, damp winters. While you’re stuck indoors watching the rain, your garlic is quietly establishing roots and preparing for spring growth. By the time summer arrives and you’re harvesting fresh bulbs, you’ll wonder why you ever bought the imported stuff. This guide walks you through everything I’ve learnt about growing garlic properly, from selecting the right varieties for our weather to storing your harvest through the winter months…. so lets learn how to grow garlic.

Whether you’ve got a full allotment or just a few pots on a patio, you can grow garlic. I’ll share the practical steps that work, the mistakes I’ve made so you don’t have to, and the techniques that genuinely make a difference to your harvest. For more on this, see our guide on from seed to table: your complete turnip growing guide.

How to Grow Garlic

Getting started with garlic doesn’t require a massive investment or specialist equipment. The beauty of this crop is its simplicity, though having the right materials from the start will make your life easier and improve your results considerably.

Essential Materials

First and foremost, you’ll need garlic bulbs suitable for planting. Don’t use supermarket garlic, as it’s often treated to prevent sprouting and may carry diseases. Instead, source certified seed garlic from garden centres or online suppliers. I’ve found that softneck varieties like ‘Solent Wight’ perform brilliantly across most of the UK, whilst hardneck types such as ‘Lautrec Wight’ offer more intense flavour if you’re willing to accept slightly smaller yields.

You’ll want decent soil or compost if you’re container growing. Garlic prefers well-drained soil with plenty of organic matter worked in. I usually add a couple of buckets of well-rotted compost or manure to each square metre of bed before planting. For containers, any multipurpose compost works fine, though I mix in some grit or perlite to improve drainage. You might also find the complete guide to growing mizuna in your garden helpful.

A dibber or trowel makes planting easier, though I often just use my finger to make holes. You’ll also need something to mark your rows, as garlic takes months to grow and you’ll forget where you planted it. I use bamboo canes with labels, nothing fancy.

Optional But Helpful Items

If you’re growing in heavy clay soil like much of the Midlands and South East, a garden fork for breaking up compacted ground proves invaluable. I also keep horticultural fleece handy for protecting emerging shoots during particularly harsh cold snaps, though garlic is tougher than you’d think.

A cloche or cold frame can give you a head start if you’re planting in exposed areas. I’ve used them successfully in the Pennines where wind and wet soil can rot bulbs before they establish. Mulching material like straw or compost helps suppress weeds and retain moisture, especially useful if you can’t visit your plot regularly.

Step-by-Step Instructions

Growing garlic follows a straightforward pattern, but timing and technique matter more than you might expect. I’ve broken this down into manageable stages that’ll take you from planting to harvest.

Choosing and Preparing Your Site

Select the sunniest spot you’ve got. Garlic tolerates partial shade but produces bigger bulbs with at least six hours of direct sunlight daily. I’ve grown it in a bed that only gets morning sun, and whilst it still produced decent garlic, the bulbs were noticeably smaller than those in full sun.

Prepare your soil at least a week before planting. Dig it over to a spade’s depth, removing any large stones and perennial weeds. Work in organic matter like garden compost or well-rotted manure. Heavy clay soils benefit from grit or sharp sand mixed through the top 15 centimetres to improve drainage. Waterlogged conditions are garlic’s worst enemy, causing bulbs to rot before they even sprout.

If your soil is acidic, add some lime to bring the pH up to around 6.5 to 7.0. Garlic isn’t fussy, but it performs best in neutral to slightly alkaline conditions. I test my soil every couple of years with a simple pH kit from the garden centre.

When and How to Plant

Timing is critical with garlic. In the UK, plant between October and early December for most varieties, though some softneck types tolerate planting as late as February. Autumn planting gives larger bulbs because the cloves establish roots during winter and spring into growth early. I always aim for November planting after the first frosts but before the ground becomes frozen or waterlogged.

Break your garlic bulbs into individual cloves no more than a day or two before planting. Keep the papery skin intact on each clove. Select the largest, healthiest cloves for planting and use the smaller ones in the kitchen. Each clove becomes one new bulb, so bigger cloves generally mean bigger harvests.

Plant cloves pointed end up, flat base down. This seems obvious, but I’ve seen plenty of beginners plant them sideways or upside down. Push each clove into the soil so the tip sits about 2.5 centimetres below the surface. Space them 15 centimetres apart in rows 30 centimetres apart. In containers, you can get away with slightly closer spacing, around 10 centimetres apart.

Caring for Growing Garlic

Once planted, garlic needs surprisingly little attention. The main task through winter and early spring is keeping weeds under control. Garlic doesn’t compete well with weeds, and even a modest covering of chickweed or groundsel can reduce your harvest significantly. I weed carefully by hand rather than using a hoe, which risks damaging the shallow roots.

Water only during prolonged dry spells in spring. Garlic needs moisture whilst actively growing but hates sitting in wet soil. Our typical British weather usually provides enough water naturally. I only irrigate if we’ve had two weeks without rain during April or May. Stop watering completely once the leaves start yellowing in June, as bulbs need to dry out before harvest.

Feed sparingly if at all. Garlic isn’t a hungry crop, and too much nitrogen produces lush foliage at the expense of bulb development. If your soil is poor, a light application of general purpose fertiliser in early spring helps, but I usually skip feeding entirely if I’ve added compost at planting time.

Recognising and Responding to Problems

Watch for rust, which appears as orange spots on leaves. It’s more common in wet springs and can weaken plants, though it rarely kills them. Improve air circulation by keeping weeds down and ensuring proper spacing. Remove badly affected leaves, but don’t strip plants bare.

If shoots emerge in autumn only to get flattened by frost, don’t panic. Garlic is incredibly hardy and will bounce back. I’ve had entire beds look completely dead after heavy snow, only to see fresh green shoots appear once conditions improve.

Birds, particularly pigeons, sometimes pull up newly planted cloves. Netting or fleece over the bed for the first few weeks prevents this. Once roots establish, plants stay firmly in place.

Harvesting Your Garlic

Harvest timing depends on variety and planting date, but typically falls between June and August. Watch the foliage rather than the calendar. When about half the leaves have turned brown and died back, your garlic is ready. Don’t wait until all leaves are brown, as the bulb wrappers start deteriorating and won’t store as well.

Choose a dry day if possible. Loosen the soil around bulbs with a fork, working carefully to avoid spearing them. Lift each plant gently, shaking off excess soil. Don’t wash them. The protective outer layers need to stay intact for good storage.

Curing and Storing

Curing is essential for long storage and often gets overlooked. Lay harvested garlic in a single layer somewhere dry and well-ventilated but out of direct rain. I use a greenhouse bench or a covered porch. Leave them for two to three weeks until the outer skins are papery and rustling dry, and the necks have completely withered.

Once cured, trim roots to about half a centimetre and cut stems to 2.5 centimetres, or plait them if you’re feeling traditional. Store in nets, paper bags, or plaited strings in a cool, dry place. A garden shed works fine. Avoid damp cellars or warm kitchens. Properly cured and stored, your garlic should last until the following spring, though I’ve kept some varieties for nearly a year.

Common Mistakes to Avoid

I’ve made plenty of errors growing garlic over the years, and watching other gardeners at my local allotment site in Gloucester, I’ve spotted patterns in what goes wrong.

Planting Too Late or Too Shallow

The most frequent mistake is planting in late winter or early spring. Whilst some varieties tolerate this, you’ll get substantially smaller bulbs than autumn-planted garlic. The cloves need that cold period to develop properly. I once planted a row in March as an experiment, and the bulbs were barely bigger than the cloves I’d planted.

Shallow planting causes problems too. Cloves planted at the surface often get pushed out by frost or birds, and even if they stay put, they produce smaller, poorly formed bulbs. That 2.5 centimetre depth isn’t arbitrary. It protects the clove whilst allowing shoots to emerge easily.

Overwatering and Poor Drainage

More garlic is killed by excessive moisture than any pest or disease. If your soil holds water after rain, creating boggy patches, either improve drainage with grit and organic matter or grow in raised beds instead. I’ve watched entire patches of garlic rot away in heavy clay that wasn’t properly amended.

Similarly, enthusiastic watering through summer, especially as bulbs mature, causes splits in the wrapper and encourages disease. Once June arrives, let nature handle the watering unless you’re experiencing a genuine drought.

Using Grocery Store Garlic

It’s tempting to plant those organic garlic bulbs from your weekly shop, but this rarely works well. They may be the wrong variety for UK growing, could carry white rot disease that persists in soil for decades, and are often treated to prevent sprouting. The few pounds you save aren’t worth the disappointment of poor results. Buy certified seed garlic from reputable suppliers.

Harvesting Too Early or Too Late

Pull garlic before it’s ready and you’ll have tiny bulbs that don’t store. Leave it too long and the wrappers split, individual cloves separate, and storage life plummets. Learning to read the foliage signals takes a season or two. When in doubt, carefully excavate one test bulb to check development rather than guessing.

Expert Tips

After growing garlic in various locations and conditions, these are the techniques that consistently improve results beyond just following basic instructions.

Match Variety to Your Climate

Softneck varieties suit milder areas and coastal regions particularly well. They store brilliantly and produce reliable crops with minimal fuss. I always recommend them for beginners. Hardneck types need a proper cold spell to form bulbs correctly, making them better for Scotland, northern England, and higher altitude sites. They don’t store quite as long but offer superior flavour that’s worth the trade-off if your climate suits them.

In my Somerset garden, I grow both types, planting softneck varieties in the main bed for long storage and a small patch of hardneck for immediate use. This gives me the best of both worlds.

Save Your Best Bulbs for Replanting

Once you’ve grown a successful crop, keep the largest, healthiest bulbs for planting next autumn. Garlic adapts to local conditions over time, and home-saved seed often outperforms shop-bought in subsequent years. I’ve been replanting from my own harvest for five years now, and each crop seems slightly more vigorous than the last.

Just inspect saved bulbs carefully before planting. Any showing disease symptoms or damage should go in the kitchen instead. You want to propagate only from your best performers.

Consider Green Garlic and Scapes

You don’t have to wait until summer for harvest. Green garlic, pulled in spring when plants are still immature, offers mild, delicate flavour perfect for salads and stir-fries. Thin your rows by harvesting every other plant in April, giving remaining bulbs more space to develop.

If you’re growing hardneck varieties, they’ll produce scapes (flower stalks) in late spring. Cut these off when they curl, as leaving them reduces bulb size. Don’t waste them though. Scapes are delicious in pesto, stir-fries, or simply grilled. They’ve become my favourite garlic product, and I sometimes plant hardneck varieties specifically for scapes even though they don’t suit my climate perfectly for bulb production.

Rotate Your Crops Properly

Never grow garlic in the same spot two years running, and avoid following onions, leeks, or shallots. These related crops share pests and diseases, particularly white rot. I work on a four-year rotation minimum, growing garlic after legumes or brassicas. This simple practice dramatically reduces disease pressure and maintains soil health.

Mulch for Weed Suppression

A layer of compost, well-rotted manure, or straw applied after planting suppresses weeds and helps regulate soil moisture. I apply about five centimetres depth once shoots emerge in late winter. This saves hours of weeding through spring and seems to boost overall plant health. Just keep mulch a few centimetres away from the stems to prevent rot.

Frequently Asked Questions

Can I grow garlic in pots?

Absolutely, and I’ve had excellent results with container-grown garlic. Use pots at least 20 centimetres deep and wide enough to space cloves 10 centimetres apart. Drainage is critical, so ensure containers have adequate holes. Fill with multipurpose compost mixed with grit for drainage. Container garlic needs slightly more attention to watering than ground-grown plants, as pots dry out faster, but the bulbs often grow just as large. This method works brilliantly if you’ve only got a patio or balcony, and you can move pots to the sunniest spots as seasons change.

Why are my garlic bulbs small?

Several factors cause undersized bulbs. Late planting is the most common culprit, as garlic needs a long growing season. Poor soil fertility, overcrowding, and inadequate sunlight all contribute too. Competition from weeds significantly reduces bulb size by stealing nutrients and moisture. If you planted in spring rather than autumn, small bulbs are inevitable. Finally, some varieties naturally produce smaller bulbs than others. Elephant garlic grows huge but isn’t true garlic, whilst some gourmet hardneck varieties produce modest-sized but intensely flavoured bulbs.

Do I need to feed garlic during growth?

Generally no, provided you’ve prepared soil with organic matter before planting. Garlic isn’t particularly hungry and excessive feeding, especially nitrogen-rich fertilisers, produces lush foliage at the expense of bulb development. If your soil is very poor or you’re growing in containers with basic compost, a light application of balanced fertiliser in early spring helps. I use a general-purpose granular feed sprinkled sparingly around plants in March. Avoid feeding after April, as this delays bulb formation. Most years in decent soil, I don’t feed at all and still harvest excellent crops.

What’s the difference between hardneck and softneck garlic?

Hardneck varieties produce a stiff central stem and a flower stalk (scape) in late spring. They typically have larger cloves arranged in a single ring around the stem, fewer cloves per bulb, and more intense flavour. They need cold winters to form bulbs properly and don’t store as long as softneck types. Softneck varieties lack the central stem, produce more numerous but smaller cloves arranged in layers, store brilliantly for months, and tolerate milder winters. For most UK gardeners, especially beginners, softneck varieties offer more reliable results. I grow both because I enjoy the different flavour profiles and uses.

Can I eat garlic leaves?

Yes, garlic foliage is entirely edible and delicious, though harvesting leaves reduces bulb size. If you’re growing primarily for bulbs, resist the temptation to cut leaves, as they’re essential for photosynthesis that feeds bulb development. However, if you’ve planted extra densely, thinning some plants in spring for their green leaves makes sense. Use them like spring onions in salads, soups, and stir-fries. The flavour is milder than mature bulbs but distinctly garlicky. Hardneck scapes are particularly worth harvesting, as removing them actually improves bulb size whilst giving you a tasty crop.

How do I know if my garlic has white rot?

White rot is the most serious garlic disease in the UK. Affected plants turn yellow and die back prematurely, usually in late spring. If you pull up a plant, you’ll see fluffy white fungal growth around the base and roots, often with small black structures that look like poppy seeds. These are sclerotia, which persist in soil for up to 15 years, making the area unsuitable for garlic or onions. There’s no cure once it appears. Remove affected plants immediately, including all soil attached to roots, and bin them rather than composting. Don’t plant alliums in that spot again. Prevention through crop rotation and using certified disease-free seed garlic is essential.

Should I remove garlic flowers?

Hardneck garlic produces flower stalks called scapes in late spring. Remove these by cutting or snapping them off once they’ve curled but before they straighten and flower opens. Leaving scapes reduces bulb size because the plant diverts energy to seed production. The scapes themselves are culinary treasures, so this isn’t a waste. Softneck varieties rarely produce flower stalks, especially in the UK climate, so you probably won’t see them if you’re growing softneck types. If a softneck unexpectedly flowers, it’s usually stress-related, and removing the flower stalk helps redirect energy back to the bulb.

Final Thoughts

Growing garlic suits the UK climate beautifully and rewards you with months of fresh, flavourful bulbs from a simple autumn planting. The satisfaction of harvesting bulbs you’ve grown yourself, then enjoying them through winter, makes the minimal effort involved worthwhile. Unlike fussier crops that demand constant attention, garlic quietly gets on with growing whilst you focus on other garden tasks.

Start with good quality seed garlic, plant it in well-drained soil during autumn, and resist the urge to interfere too much. Garlic thrives on benign neglect once established. Keep weeds down, avoid overwatering, and harvest when foliage tells you it’s ready. Follow these principles and you’ll soon be plaiting your own garlic strings and wondering why you ever bought imported bulbs.

The beauty of garlic is that even mistakes rarely result in complete failure. Small bulbs are still usable bulbs, and each season teaches you something that improves the next crop. Whether you’ve got acres of land or just a few pots, give garlic growing a try. It’s one of the most forgiving and satisfying crops you can grow.

Author: Megan Walker

Megan focuses on seasonal food, kitchen garden growing, and how households can reconnect with where their food comes from. Her writing blends practical growing advice with ideas for cooking and eating in season. With a passion for fresh ingredients and sustainable living, Megan’s articles help readers make the most of local produce while supporting British farms.