How to grow garlic at home for flavourful bulbs and fresh green shoots

Garlic is one of the easiest and most rewarding crops you can add to your planting plans. It does not need complicated equipment, grows in open soil or containers, and provides both bulbs for cooking and tender green shoots for salads and stir fries.

With a little timing, good soil preparation and regular care, you can harvest garlic almost all year: bulbs in early summer and leafy greens whenever plants are actively growing. The steps below apply to most climates with cool winters and mild to warm summers.

Choosing the right garlic type for your climate

Garden garlic is usually divided into two main types: hardneck and softneck. Hardneck forms a stiff central stalk and often produces floral stems called scapes, while softneck stays more flexible and is typically used for supermarket braids.

Hardneck varieties suit regions with colder winters, as they need a stronger chill to form large cloves. Softneck types cope better in milder winters and often store longer after harvest. If you are unsure, ask a local nursery which types perform well in your area or try a small mix of both.

When and where to plant garlic

Garlic is planted from individual cloves, not seeds. In most temperate zones it is planted in autumn, about 4 to 6 weeks before the ground freezes, so roots can form while the soil is still workable. In very mild climates it can also be planted in late winter or early spring.

Choose a sunny site that receives at least 6 hours of direct light per day. Avoid low, soggy areas and spots where water sits after rain. Good air movement helps limit fungal diseases, so give plants enough room and avoid tucking them under dense shrubs or structures.

Preparing soil for strong bulbs

Garlic prefers loose, fertile soil with plenty of organic matter. It struggles in heavy, compacted ground, where bulbs stay small and are more likely to rot. Before planting, remove perennial weeds and break up clods so that roots can spread easily.

Work in well rotted compost or aged manure, about a bucket per square metre, and mix it into the top 15 to 20 centimetres. A balanced slow release fertiliser can be added at the same time. Garlic grows best in slightly acidic to neutral soil, but exact pH is less critical than drainage and organic content.

How to plant garlic cloves

Break apart the bulb into individual cloves a day or two before planting. Keep the dry skins intact and choose the fattest cloves for planting, as these tend to give the strongest plants. Very small inner cloves can be used in the kitchen instead.

Plant cloves with the pointed end facing up and the flat basal plate down. A common spacing is 10 to 15 centimetres between cloves in the row, with 20 to 30 centimetres between rows. Set cloves about 5 centimetres deep in light soil and slightly shallower in heavy soil, then cover and firm gently.

Growing garlic in containers

If you do not have open soil, garlic grows well in deep containers, troughs or large fabric pots. Choose a container at least 20 centimetres deep with drainage holes, and fill it with a quality peat free potting mix enriched with compost.

Space cloves 10 to 12 centimetres apart in all directions and avoid overcrowding. Containers dry out faster than open soil, so check moisture regularly. Place pots where they receive full sun, and turn them occasionally so plants grow evenly.

Watering and feeding through the season

Garlic prefers steady moisture, especially from sprouting until about one month before harvest. Water when the top few centimetres of soil are dry, soaking the whole root zone, then allow the surface to dry slightly before the next watering.

A light application of nitrogen rich fertiliser in early spring helps support leafy growth, particularly if your soil is poor or very sandy. Avoid heavy feeding late in the season, as plants should shift their energy from leaves to bulb formation as days lengthen.

Weeding and mulching for cleaner bulbs

Garlic does not compete well with weeds. Keep rows clean, especially in the first two months when plants are small. Hand weed carefully, as roots are shallow and can be damaged by aggressive hoeing.

Mulch after planting with a light layer of clean straw, shredded leaves or grass clippings that have dried for a few days. Mulch helps moderate soil temperature, conserves moisture and reduces weed growth. In cold regions, a thicker mulch also protects cloves from freeze and thaw cycles.

Managing pests and common problems

Garlic is relatively resistant to many pests, but onion fly larvae, thrips and some fungal diseases can appear. Rotate plantings so that garlic or onions are not grown in the same area for at least three years, since diseases can build up in the soil.

Avoid overhead watering late in the day, which leaves foliage wet overnight. Water at the base instead. If you notice yellowing, twisted leaves or mushy bulbs, lift an affected plant and inspect the base. Remove and discard clearly diseased plants to reduce spread, and do not compost bulbs that show rot.

Harvesting green shoots, scapes and mature bulbs

For fresh green shoots, you can cut a few leaves from each plant once the foliage reaches 15 to 20 centimetres tall, taking care not to remove more than one third of the leaves at a time. These mild greens can be used like chives or spring onions.

Hardneck varieties often send up curling flower stalks called scapes in late spring. If you snap or cut these off while still tender, they make a delicacy in the kitchen and usually encourage the plant to put more energy into the developing bulb below.

Bulbs are generally ready when the lower half of the leaves have turned brown and the upper leaves are still green and firm. In many climates this falls between early summer and mid summer. If you wait until all the leaves are brown, the outer skins can split and storage life is reduced.

Curing, storing and saving cloves for next season

Lift bulbs carefully with a fork or trowel, trying not to bruise or cut them. Shake off loose soil but do not wash. Keep leaves attached and hang plants in bundles or spread them in a single layer on a rack in a dry, shaded, well ventilated place for two to four weeks.

Once skins are papery and roots are dry, trim the roots and cut the stems, leaving a short neck. Store cured bulbs in mesh bags, baskets or ventilated crates at cool room temperature, away from direct sunlight. Avoid sealed plastic containers, which trap moisture and encourage mould.

Choose your best, healthiest bulbs to save for planting. Store these separately from kitchen bulbs so they are not eaten by accident. Over several seasons, selecting and replanting your finest cloves can gradually adapt your garlic to your local conditions.