Plant garlic cloves in the UK from October to November for the biggest bulbs — most varieties need a cold spell to split into cloves — or in February–March for a spring planting. Autumn-planted garlic is harvested from June; spring-planted from July.
Ready to start growing? Read our full How to Grow Garlic UK →
Watch this short guide to growing spring garlic at home in the UK — covering when to plant cloves, how to care for them through winter, and when to harvest for the best bulbs.
🌱 Did you know? Autumn-planted garlic gets a natural cold period over winter that triggers proper bulb formation — spring-planted garlic misses this and typically produces smaller, single-clove bulbs.
Best Time to Plant Garlic in the UK
Garlic planting in the UK follows a different schedule to most vegetables, with autumn being the optimal time:
🎯 Optimal Planting Window: October to November
Cloves planted in autumn develop strong root systems over winter and are ready to grow vigorously in spring, resulting in larger, better-formed bulbs. The RHS notes garlic needs this cold vernalisation to bulb properly, so spring-planted cloves give smaller heads.
🍂 Autumn Planting (Recommended)
When: October to November (up to December)
Best for: All garlic varieties
Harvest: June to July (following year)
Benefits: Larger bulbs, better yields, stronger plants
🌱 Spring Planting (Alternative)
When: February to March
Best for: Softneck varieties only
Harvest: August to September
Benefits: Still possible if you missed autumn planting
Why autumn planting is superior: Garlic needs a period of cold weather (vernalisation) to trigger bulb formation. Autumn-planted garlic gets this naturally over winter, resulting in larger, better-formed bulbs. Spring-planted garlic often produces smaller bulbs with fewer cloves.
Preparing Garlic for Planting
Garlic is not started indoors from seed — it’s grown from individual cloves separated from bulbs:
- Source quality bulbs: Purchase certified disease-free garlic from garden centres or specialist suppliers. Avoid supermarket garlic which may be treated or unsuited to UK conditions.
- Choose varieties: Softneck varieties (e.g., ‘Solent Wight’, ‘Provence Wight’) store longer; hardneck varieties (e.g., ‘Lautrec Wight’, ‘Chesnok Red’) have superior flavour.
- Separate cloves: Break bulbs into individual cloves 1–2 days before planting. Keep the papery skin on each clove.
- Select the best: Plant only the largest, healthiest cloves. Small cloves produce small bulbs.
Regional Planting Guide
| Region | Autumn Planting | Spring Planting | Harvest |
|---|---|---|---|
| South England | October – November | February – March | June – July |
| Midlands / Wales | October – November | Late February – March | Late June – July |
| North England | October – early December | March | July – August |
| Scotland | October – November | March | July – August |
How to Plant Garlic Cloves
- Choose location: Select a sunny spot with well-drained soil. Garlic hates waterlogged conditions.
- Prepare soil: Dig in well-rotted compost or manure several weeks before planting. pH 6.0–7.0.
- Create planting holes: Use a dibber or trowel to make holes 10–15cm apart in rows 30cm apart.
- Planting depth: Plant cloves 2.5–5cm deep, pointed end up, flat base down.
- Cover and firm: Cover with soil and firm gently. Tip of clove should be about 2.5cm below the surface.
- Mulch: Apply a 5cm layer of mulch to suppress weeds and protect from severe frost.
⚠️ Important Planting Tips:
- Never plant cloves upside down — they won’t grow properly
- Don’t push cloves into hard soil as this compacts the ground beneath them
- Protect from birds with netting if they disturb newly planted cloves
- In very cold or exposed areas, plant in modules under cover and transplant in spring
Harvest Timing
Signs Garlic is Ready to Harvest:
- Lower leaves turn yellow and brown (usually 3–4 leaves remain green)
- Foliage begins to flop over
- Bulb wrappers are visible and papery
- Individual cloves are well-defined when you feel the bulb
Harvest Schedule:
- Autumn-planted garlic: June to July (most common)
- Spring-planted garlic: August to September
- Hardneck varieties: Tend to mature 2–3 weeks earlier than softneck
Harvesting and Curing:
- Choose dry weather: Harvest during a dry spell for best results
- Loosen soil: Use a fork to gently loosen soil around bulbs
- Lift carefully: Pull bulbs by the stem, shaking off excess soil
- Dry thoroughly: Lay in a single layer in a dry, airy place out of direct sunlight for 2–3 weeks
- Cure properly: Once stems and roots are completely dry, trim roots and cut stems to 2.5cm above the bulb
- Store correctly: Store in nets, trays, or plaited strings in a cool (0–10°C), dry, well-ventilated place
Storage life: Properly cured softneck garlic stores for 9–12 months; hardneck varieties for 4–6 months.
⚠️ Don’t Harvest Too Early or Too Late:
- Too early: Bulbs won’t be fully developed and won’t store well
- Too late: Bulb wrappers split, cloves separate, and storage life is drastically reduced
- Perfect timing: When 50–75% of leaves have yellowed but before all foliage dies back
UK Growing Tips
- Drainage is critical: Garlic will rot in waterlogged soil. Improve heavy clay with grit and organic matter, or grow in raised beds
- Weed control: Keep beds weed-free, especially in spring. Garlic doesn’t compete well with weeds
- Watering: Water during dry spells in spring and early summer, but stop 2–3 weeks before harvest to aid curing
- Feeding: Apply a nitrogen-rich fertiliser in early spring, but avoid feeding after May
- Variety selection: Choose varieties bred for UK conditions like the ‘Isle of Wight’ range or ‘Solent Wight’ for reliability
- Rust prevention: Garlic rust is common in wet UK summers. Ensure good spacing for air circulation and avoid overhead watering
- Hardneck scapes: Remove the flowering stem (scape) in late spring to direct energy into bulb development. Scapes are delicious in stir-fries
- Crop rotation: Don’t grow garlic in the same spot for at least 3 years to prevent disease build-up
- Companion planting: Grow near roses, fruit trees, and brassicas — garlic helps deter aphids and other pests
- Container growing: Garlic grows well in deep containers (minimum 20cm) with excellent drainage — ideal for patios
Frequently Asked Questions
When should I plant garlic in autumn?
Plant garlic in October or November — after summer crops clear but while the soil is still workable. Autumn planting gives cloves the winter cold spell (vernalisation) they need to split into full bulbs, and roots establish before the ground cools. In mild southern gardens you can stretch to early December.
What is the best garlic planting time in the UK?
October to November is the best garlic planting time in the UK — autumn-planted cloves consistently produce the biggest bulbs. If you miss that window, plant from February to March for a smaller but still worthwhile summer harvest.
Can I plant garlic in spring in the UK?
Yes — plant spring garlic in February or March, as soon as the soil is workable. Expect smaller bulbs than autumn plantings because the cloves get less winter cold; choose a variety sold for spring planting and harvest from late July into August.
When is garlic ready to harvest in the UK?
Autumn-planted garlic is ready June to July; spring-planted runs July to August. Lift bulbs when roughly half the leaves have yellowed. Don't wait for all the foliage to die back — over-mature bulbs split their skins and store poorly.
Useful Tools
Planting Tools
A dibber for making planting holes, trowel for soil preparation, and garden line for straight rows. Browse our hand tools for gardening.
Weeding & Maintenance
Hand hoes and cultivators for weed control without disturbing shallow garlic roots. See our hand tools range.
Soil & Plant Care
Fertilisers, pH testing kits, and organic mulches. Explore our soil and plant care collection.
Related Guides
Common Mistakes to Avoid
- Planting supermarket garlic. Supermarket bulbs may not suit the British climate and can carry disease — always plant certified virus-free seed garlic.
- Planting cloves too shallow. Shallow planting produces green cloves that won't store well — plant with the tip just below the surface.
- Watering after bulbs mature. Continuing to water once bulbs are well-formed encourages rot rather than helping the crop.
Plan Your Garlic Crop — and Every Other Veg
The UK Vegetable Garden Planner PDF gives you month-by-month sowing and harvest schedules for 38 crops.
Get the Garden PlannerLast updated 4 July 2026
Plan The Timing Before You Sow
Use the planting window with a planner, seed-starting setup, and the full calendar so dates stay practical for your garden.
Plan the next step
Use the printable UK Vegetable Garden Planner to turn this guide into sowing dates, bed layouts, and weekly garden tasks.