When is the best month to plant garlic in the UK?

**October is the ideal month for most UK regions.** Planting in October gives cloves 4-6 weeks to root before the coldest winter weather. In northern England and Scotland, plant in the first two weeks of October. In the south, any time from mid-October to mid-November works well.

Can I plant garlic in spring instead of autumn?

**Spring planting works but produces smaller bulbs.** Plant in February or early March if you missed autumn. Expect bulbs 20-30 percent smaller than autumn-planted ones. Softneck varieties cope better with spring planting. Pre-chill cloves in the fridge for 4-6 weeks before planting to mimic vernalisation.

Why should I not plant supermarket garlic?

**Supermarket garlic is not suited to UK growing conditions.** It often comes from Spain or China, where the climate differs greatly. It may carry viruses or white rot disease. Certified UK seed garlic from specialist suppliers is disease-free and selected to perform in British weather.

What is the difference between softneck and hardneck garlic?

**Softneck garlic stores longer; hardneck has stronger flavour.** Softneck types produce 10-20 cloves per bulb and last 8-10 months in storage. Hardneck types produce 4-12 larger cloves, grow an edible flower stalk called a scape, and have more complex flavour. Hardneck garlic is hardier in cold northern UK gardens.

How do I know when garlic is ready to harvest?

**Harvest when the lower third of leaves turn yellow.** This typically happens from June for early varieties and July to August for maincrops. Do not wait until all leaves brown, as the bulb wrappers will have deteriorated. Lift one test bulb first to check the cloves have filled out inside the skin.

How long does garlic take to grow from planting to harvest?

**Autumn-planted garlic takes 8-10 months to harvest.** Cloves planted in October are ready from June to August depending on variety. Spring-planted garlic takes 5-6 months, harvesting from August to September. Early varieties like Early Purple Wight are ready first.

Can I grow garlic in a pot?

**Garlic grows well in containers at least 20cm deep.** Use peat-free multipurpose compost mixed with perlite for drainage. Plant cloves 2.5cm deep, 10cm apart. Keep pots outdoors through winter, as garlic needs the cold. Water sparingly until spring, then increase as leaves grow actively.

What does vernalisation mean for garlic?

**Vernalisation is the cold period that triggers bulb formation.** Garlic cloves need 30 or more days at temperatures below 10C. Without this cold exposure, the clove grows into a single round bulb rather than dividing into multiple cloves. UK winters naturally provide this cold in all regions.

Growing | 7 November 2025 | 14 min read

When to Plant Garlic in the UK

Learn exactly when to plant garlic across the UK. Covers autumn and spring timing, softneck and hardneck varieties, and regional planting windows.

Garlic cloves being pressed into prepared soil in a UK vegetable bed in autumn

Growing

Plant garlic in the UK between October and November for the strongest harvests. Garlic needs 30 or more days below 10C to trigger clove division. Softneck varieties like Solent Wight suit southern England. Hardneck types like Lautrec Wight are hardier for northern gardens. Plant cloves 2.5cm deep and 15cm apart in full sun with well-drained soil at pH 6.0-7.0.

Cold Requirement30+ days below 10C for clove division

Softneck StorageStores 8-10 months, best for south

Hardneck StorageStores 3-5 months, stronger flavour

Spacing2.5cm deep, 15cm apart, rows 30cm

Key takeaways

Plant garlic cloves in October to November for the largest bulbs, giving them 30 or more days below 10C
Softneck varieties store for 8-10 months and suit milder southern and central UK gardens
Hardneck varieties produce stronger flavour and edible scapes but store for only 3-5 months
Space cloves 15cm apart in rows 30cm apart, planted 2.5cm deep with the pointed end upward
Spring planting in February to March works as a backup but produces bulbs 20-30 percent smaller
Never use supermarket garlic as seed stock, as it may carry disease and is unsuited to UK conditions

garlic vegetables planting times grow your own allotment autumn planting

By Garden UK Editorial Team

Our team produces practical UK gardening guidance from source research, contributor records and established horticultural practice. Editorial standards are overseen by Matt W.

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