When to plant Garlic in Cardiff

Allium sativum

Garlic
Garlic · Allium sativum

Hardy garlic for a sunny, well-drained UK bed. Plant garlic sold for planting in autumn so it gets a cold spell and makes bulbs the following summer. Choose named varieties sold as seed garlic rather than supermarket bulbs. Hardneck types make a flower stem called a scape. Snap it off when it appears. Softneck types rarely make scapes.

60 cm · Full Sun · Moderate Water

Calibrated to Cardiff · average last frost around 22 Apr

Plant out September to November, harvest May to September. Typical frost risk October to April.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Plant outNoNoNoNoNoNoNoNoYesYesYesNo
HarvestNoNoNoNoYesYesYesYesYesNoNoNo

Growing guide

What to do through the growing season

Change the guide to see different planting timelines and tips.

Plant garlic sold for planting in autumn so it roots over winter and makes larger bulbs. Choose named varieties sold as seed garlic rather than supermarket bulbs.

  1. 01

    Prepare Soil

    14 Sept to 28 Sept

    Work in well-rotted compost or manure around 14th September - 28th September, not fresh. The bed must drain well or cloves rot over winter. Rake to a fine tilth and take out weeds.

  2. 02

    Plant Cloves

    28 Sept to 11 Nov

    Use garlic sold for planting, not supermarket bulbs. Choose a named variety sold as seed garlic. Plant individual cloves around 28th September - 11th November, pointy end up, with of soil over the tip. Space them apart, in rows apart. Firm the soil. Shallow planting makes green cloves.

    • Birds pull cloves. Cover the row with fleece or mesh until they root.
  3. 03

    Weed and Mulch

    5 Oct to 25 Nov Dates as each sowing reaches this stage

    Mulch once after planting, around 5th October - 25th November, with straw or compost. That holds moisture and keeps weeds down. Garlic competes poorly with weeds, so keep pulling weeds as they show.

  4. 04

    Remove Scapes

    27 Mar to 9 Jun 2027 Dates as each sowing reaches this stage

    On hardneck types, snap scapes when they appear, around 27th March - 9th June 2027. You can eat them. Softneck types almost never make scapes.

  5. 05

    Harvest Bulbs

    26 May to 8 Aug 2027 Dates as each sowing reaches this stage

    Lift bulbs through 26th May - 8th August 2027, when the lower leaves yellow. Use a fork so you do not nick the bulbs.

  6. 06

    Cure and Store

    26 May to 5 Sept 2027 Dates as each sowing reaches this stage

    Dry the bulbs in a well-ventilated, shaded spot for 2 to 4 weeks, from 26th May - 5th September 2027. Keep them below . Trim roots and foliage once the skins are papery, then store somewhere cool and dry.

Companion plants

Tap a plant to see why it works (or doesn't) with Garlic.

Plants to avoid

Why companion planting matters

Companion planting can deter pests, improve pollination, and make better use of space. Some plants confuse pests or attract beneficial insects; others improve soil or offer shade to neighbours that need it.

Suggested varieties

Popular varieties of Garlic to consider

Solent Wight

A softneck variety with a strong flavour, excellent for storing and well-suited to UK climates.

Purple Wight

A hardneck variety with purple-striped skin and a milder taste, ideal for autumn planting.

Cristo

A softneck variety known for its large bulbs and good resistance to rust, suitable for spring planting.

Garlic guides by town

See how Garlic timing shifts in other towns with different frost dates.