Garlic is one of the most satisfying kitchen crops because each planted clove can grow into a new bulb. It isn't complicated, but the time of year matters, especially in Britain. Many varieties benefit from a period of winter cold, which helps them divide into the familiar sections you see when cooking.
The sensible starting point is to buy garlic intended for planting, choose well-drained soil and put each clove in the correct way up. Good light and consistent care through spring give you a better chance of a useful harvest in summer.
Choose planting garlic, not random leftovers
Buy named seed garlic from a reputable garden supplier. The Royal Horticultural Society recommends suitable planting stock because supermarket garlic may be grown for a different climate or have an uncertain disease history.
Look for firm healthy bulbs with no visible mould or soft wet sections. Larger sound cloves often have more reserves for a vigorous start.
Don't break a bulb into individual cloves until shortly before planting. The surrounding skins help protect the cloves during storage.
Decide between hardneck and softneck types
Hardneck garlic commonly produces a stiff central stalk and may suit colder climates. Softneck varieties often form bulbs that store well under suitable conditions.
Variety performance varies with region, soil and season. Read the supplier's notes rather than assuming every garlic has the same planting window.
If you want garlic for long-term kitchen storage, consider both yield and how well the named variety is reported to keep.
Pick the right planting season
In many UK gardens, autumn planting from October into early winter works well because garlic benefits from exposure to cold. Some varieties are offered for spring planting.
The RHS advises planting in autumn or early spring depending on type and conditions, and notes that sufficient cold helps bulb formation.
Don't force cloves into frozen or waterlogged soil. In very wet gardens, growing in suitable containers initially may help protect them.
Prepare a sunny position
Choose open ground that receives good light and drains reasonably well. Garlic can struggle in a patch that remains waterlogged throughout winter.
Remove persistent weeds and loosen compacted soil. Incorporating suitable well-rotted organic matter can improve structure, but avoid burying cloves in fresh manure.
If your soil stays saturated, use a raised bed or large well-drained container. Waterlogged roots can rot before growth begins.
Separate the cloves carefully
Split the bulb by hand into individual cloves, leaving the papery skin on each one. Discard damaged, mouldy or unusually soft cloves.
You don't need to peel them like cooking garlic. The outer covering helps protect the clove while it establishes.
Plant larger sound cloves for your main crop and use smaller ones for cooking if desired. Don't plant a clove already decaying simply because you don't want to waste it.
Plant pointed end upward
Place each clove upright with the pointed shoot end at the top and the flat basal root plate at the bottom.
The RHS recommends planting cloves about 2.5cm below the soil surface, depending on soil and growing method. Follow your variety's advice where it differs.
Firm gently and label the row. The young shoots resemble narrow grass, so markers are helpful while you weed nearby beds.
Leave enough room
A typical RHS recommendation is around 15cm between cloves and about 30cm between rows. Larger varieties may need somewhat more room.
Spacing helps each plant form a full bulb and gives you access to remove weeds. Crowded garlic can make smaller bulbs.
If growing in a container, avoid planting twenty cloves in a pot intended for three or four. Root space and drainage still matter.
Water only as needed initially
Autumn rainfall may provide enough moisture without frequent extra watering. Check the soil rather than following a rigid daily schedule.
During dry spring spells, water more consistently while plants are growing actively and bulbs are swelling.
Reduce unnecessary watering as the crop matures and the leaves begin dying back. Constant wet soil near harvest can make curing and storage harder.
Feed and weed sensibly
Garlic is a relatively hungry crop, and a fertile bed supports healthy leaves that produce energy for bulb development.
Use a suitable balanced feed or soil improvement plan when needed. Excessive late nitrogen can encourage lush leaves without improving mature storage bulbs.
Weed carefully with a shallow hoe or by hand. Garlic roots can be disturbed by rough digging close to the plants.
What happens in winter?
Early shoots may emerge during colder months, depending on planting time and local weather. Garlic is generally grown through winter in many UK areas.
A cold spell doesn't automatically mean the crop is lost. The plant's ability to cope depends on variety and conditions.
Avoid heavily compacting wet soil around young plants during winter maintenance. Good drainage matters more than constant intervention.
Should you remove flower stalks?
Hardneck garlic may form a curling flower stalk called a scape. Some growers remove scapes to encourage energy towards bulb growth.
The scapes are edible when harvested at an appropriate stage and can be used in pesto or stir-fries.
Softneck garlic often behaves differently, so don't expect every plant to produce the same curled stem.
Recognise maturity
Garlic is commonly harvested when the lower leaves yellow and begin dying back, with several upper leaves still green. Exact timing depends on planting date and variety.
Lift a test bulb to assess size and skin development. Don't assume a spectacularly tall green plant means the bulb is already mature.
If you leave bulbs too long, wrappers may split and storage quality can suffer. Harvest during suitable relatively dry conditions if possible.
Lift bulbs without bruising
Loosen soil with a garden fork away from the bulb, then lift carefully. Avoid pulling violently on stalks in heavy soil.
Do not knock bulbs hard together to remove soil. Bruises and damaged wrappers can shorten storage life.
Keep sound harvest bulbs separate from those with cuts or splits, which are better used sooner.
Cure properly before storage
Spread harvested garlic in a dry, ventilated place protected from rain, following RHS guidance. The stems and outer wrappers need to dry sufficiently.
Curing can take several weeks depending on conditions. Don't wash the bulbs and immediately seal them in plastic bags.
Once cured, trim and store in a cool, dry, airy location. Inspect occasionally for softening or mould.
Common garlic growing problems
Small bulbs can come from unsuitable variety, crowding, poor light, lack of winter cold or stressed growth. Yellowing leaves can be normal near harvest or a sign of a problem earlier.
Rust may cause orange spots on foliage, while rot can affect roots in poorly drained soil. Learn the symptoms before applying any treatment.
For your first attempt, use a small patch of named autumn-planting garlic and follow the supplier's schedule.
A simple start
Choose healthy cloves, plant upright in fertile free-draining ground during the appropriate season, and keep the area weed-free.
Garlic rewards patience more than clever gadgets. One carefully planted clove becomes a useful summer bulb when the conditions are right.