
Allium sativum
Garlic is a hardy, sun-loving bulbous vegetable from the onion family, grown for its pungent cloves used in cooking. It’s easy to grow in a warm, well-drained spot and needs minimal fuss – plant individual cloves and they will develop into full bulbs by the following summer. Most garlic varieties require a cold spell over winter to form good bulbs, so in the UK they are generally planted in autumn. There are two main types of garlic: hardneck and softneck. Hardneck types produce flower stalks (scapes) which should be removed, and their bulbs have fewer but larger cloves (they store for around 4–6 months). Softneck types have more, smaller cloves and rarely bolt; they also store for longer, often up to a year.
Step-by-step instructions for growing Garlic
Change the guide to see different planting timelines and tips.
Plant garlic cloves in autumn for a robust summer harvest. This method yields larger bulbs as the plants establish roots over winter.
Ensure the soil is well-draining to prevent winter rot. Dig in compost or well-rotted manure to improve structure, ideally 7th October - 21st October. Work the soil to a fine tilth and remove any weeds.
Plant individual cloves with the tips just showing above the soil, spaced apart in rows apart. Firm the soil gently around them to eliminate air pockets. This is best done 7th October - 21st October.
Keep the area weed-free, as garlic competes poorly for light and nutrients. Apply a mulch of straw or compost to suppress weeds and retain moisture. Do this 21st October - 28th October after planting.
If growing hardneck varieties, snap off the curly flower scapes in late spring to direct energy into bulb growth. Do this 12th April - 12th May when scapes appear.
Lift bulbs when the foliage starts to yellow and fall over, typically 11th June - 11th July. Use a fork to loosen the soil and avoid damaging the bulbs.
Dry the harvested bulbs in a well-ventilated, shaded spot for 2–3 weeks until the skins are papery. Trim the roots and foliage before storing in a cool, dry place. Start curing 26th June - 3rd July after harvest.
Plants that grow well (or poorly) with Garlic
Companion planting can help deter pests, improve pollination, enhance growth, and maximize garden space. Some plants release chemicals that repel pests or attract beneficial insects, while others can improve soil quality or provide shade for sensitive plants.
Popular varieties of Garlic to consider
A softneck variety with a strong flavour, excellent for storing and well-suited to UK climates.
A hardneck variety with purple-striped skin and a milder taste, ideal for autumn planting.
A softneck variety known for its large bulbs and good resistance to rust, suitable for spring planting.