Planting garlic in autumn: timing, spacing and depth

Planting garlic in autumn gives it time to root and provides the cold period many varieties need to form a well-divided bulb. But autumn is not automatically best. In heavy ground that stays saturated all winter, waiting until late winter or using a raised area is better than planting early and losing cloves to rot.

When to plant autumn garlic

The usual window runs from mid-autumn to early winter, outside frozen periods and when the soil is workable. October and November suit many temperate regions. Later planting remains possible while the ground is neither sticky with water nor frozen.

Variety comes first: some garlic is sold for autumn planting, some for late winter or spring. Follow the supplier's direction, then adjust it to your soil.

Choose healthy cloves

Use bulbs sold for planting, ideally certified stock, rather than grocery garlic of unknown variety, health and local suitability. Split the bulb shortly before planting to limit drying and damage.

Reject soft, marked or wounded cloves. Keep the larger ones for planting, since the initial reserve affects early vigour. Leave the dry protective skin in place.

Soil and position

Garlic needs sun and, above all, soil that sheds water. It tolerates cold far better than waterlogging. On clay, do not plant in the bottom of a furrow where water gathers. Make a ridge, use a raised bed, or start cloves in modules under cold cover for spring planting.

Avoid fresh manure and heavy nitrogen just before planting. They encourage soft growth and can worsen storage or rot problems. Normally fertile soil, improved with mature compost for a previous crop, is often enough.

Spacing and planting depth

A practical benchmark is 10–15 cm between cloves and 25–30 cm between rows. Put the point upwards and the flat basal plate downwards. Cover the point with roughly 2–3 cm of soil; planting can be a little deeper in light ground and should remain shallow in heavy ground.

At 15 cm within rows and 30 cm between them, one square metre carries about twenty plants before access margins. That simple calculation prevents buying five bulbs for a bed that only has room for two.

Winter and spring care

Birds may pull newly planted cloves. Netting or fleece for the first few weeks protects them, but remove or raise it before it restricts the leaves.

Keep the area weed-free: garlic leaves much bare soil and competes poorly. Do not water already-wet winter ground. In spring, water through genuinely dry periods, then reduce water as bulbs approach maturity.

A long rotation with other alliums — onions, shallots and leeks — reduces the risk of building persistent problems. Do not automatically put garlic back in the same successful bed.

Harvest and storage

Harvest generally falls between late spring and summer depending on variety and planting date. When several leaves have yellowed but some green remains, lift one bulb and inspect it. Waiting until every leaf disappears can allow the wrappers to split and reduce storage life.

Lift in dry weather, let surface moisture dry, then cure bulbs in an airy place out of hard sun and rain. Store only sound, fully dry bulbs.

Fit garlic into the rest of the garden

Garlic occupies its space for many months. Before planting, check what follows its harvest and what surrounds it in your vegetable-garden plan. For other crops at the same time, see what to plant in October and the sowing and planting calendar.

Marmanda carries that duration and spacing into a placed, dated plan. The goal is not to repeat one universal date, but to verify that the crop fits the actual surface and succession.