When to plant Potatoes in Cardiff

Solanum tuberosum

Potato
Potato · Solanum tuberosum

A staple root vegetable grown from seed potatoes, producing tubers underground. In the UK, potatoes are classified as first earlies, second earlies, or maincrop, each with different planting and harvesting times. They thrive in well-drained soil and full sun, and require earthing up to protect tubers from light.

60 cm · Full Sun · Moderate Water

Calibrated to Cardiff · average last frost around 22 Apr

Sow outdoors April to May, harvest July to August. Typical frost risk October to April.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow outdoorsNoNoNoYesYesNoNoNoNoNoNoNo
HarvestNoNoNoNoNoNoYesYesNoNoNoNo

Growing guide

What to do through the growing season

Change the guide to see different planting timelines and tips.

Growing second early potatoes outdoors for a summer harvest.

  1. 01

    Chit Seed Potatoes

    11 Feb to 13 Mar

    Chit second-early seed potatoes around 11th February - 13th March. Arrange them in a single layer somewhere cool and light for a few weeks so they develop short, sturdy shoots.

  2. 02

    Plant Second Earlies

    15 Apr to 6 May

    Plant chitted second earlies around 15th April - 6th May in prepared soil. Set tubers deep and apart, with about between rows. Cover, firm gently and water in. Use fleece if a late frost is forecast.

  3. 03

    Earth Up

    29 Apr to 1 Jul Dates as each sowing reaches this stage

    As the second early potato shoots grow to ~15cm, periodically hill up soil around their stems. This protects the young potatoes from sunlight and supports the plant. Continue earthing up every week or two until flowering, leaving just the tops of the plants exposed each time.

  4. 04

    Harvest

    8 Jul to 26 Aug Dates as each sowing reaches this stage

    Lift second-early potatoes through 8th July - 26th August once plants have flowered and the foliage starts to yellow. Dig carefully, allow tubers to dry for a few hours, then use fresh or store briefly somewhere cool and dark.

Suggested varieties

Popular varieties of Potato to consider

Charlotte

A popular salad potato with waxy, yellow flesh that holds its shape well when boiled. It's reliable in UK conditions and produces a good crop of uniform tubers.

Maris Piper

A classic maincrop variety that's widely grown for its versatility and good blight resistance. It's excellent for roasting, chipping and mashing.

Rocket

An early variety that produces quick crops of white-fleshed potatoes, often ready by June. It's a good choice for gardeners wanting new potatoes early in the season.

King Edward

A heritage maincrop with distinctive pink eyes and floury white flesh that's ideal for baking and roasting. It stores well and performs reliably across the UK.

Pink Fir Apple

An unusual heritage variety with long, knobbly tubers and waxy, flavoursome flesh. It's prized for salads and holds up well in cooler UK summers.

Cara

A red-skinned maincrop with good resistance to common scab and drought tolerance. It produces large, floury tubers that are good for baking and mashing.

Potato guides by town

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