When to plant Chilli Peppers in Stirling

Capsicum annuum

Chilli Pepper
Chilli Pepper · Capsicum annuum

Chilli peppers are tender perennials grown as annuals in the UK, requiring a long, warm season. They thrive in a greenhouse or a sunny, sheltered outdoor spot, producing fruits that range from mild to intensely hot depending on variety and growing conditions.

60 cm · Full Sun · High Water

Calibrated to Stirling · average last frost around 1 May

Sow indoors February to March, plant out May, harvest July to October. Typical frost risk October to May.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow indoorsNoYesYesNoNoNoNoNoNoNoNoNo
Plant outNoNoNoNoYesNoNoNoNoNoNoNo
HarvestNoNoNoNoNoNoYesYesYesYesNoNo

Growing guide

What to do through the growing season

Change the guide to see different planting timelines and tips.

Start chillies indoors in warmth, then grow them in a greenhouse for the longest cropping season.

  1. 01

    Sow Seeds Indoors

    15 Feb to 2 Mar

    Sow seeds in a heated propagator at from 15th February - 2nd March. Use seed compost and cover to a depth of . Keep moist and expect germination in 7-14 days.

    • If you don’t have a heated propagator, place pots in a warm airing cupboard or use a heat mat. Remove covers as soon as seedlings appear to prevent damping off.
  2. 02

    Prick Out Seedlings

    8 Mar to 30 Mar Dates as each sowing reaches this stage

    Once seedlings have two true leaves, prick them out into small pots from 8th March - 30th March. Handle carefully by the leaves to avoid stem damage and plant at the same depth as before.

    • After pricking out, keep seedlings in bright, indirect light for a few days to help them recover without wilting.
  3. 03

    Pot On and Pinch Out

    5 Apr to 4 May Dates as each sowing reaches this stage

    Pot on around 5th April - 4th May when roots show at the drainage holes. Pinching the growing tip at can make the plant bushier, but it can delay the first fruit.

    • Wait until you can see roots poking out of the drainage holes before potting on – moving plants up too early can stunt them.
  4. 04

    Transplant to Greenhouse

    15 May to 29 May

    Move plants into their final greenhouse pots or beds around 15th May - 29th May, once night temperatures stay above . Space them apart and ventilate the greenhouse on warm days.

  5. 05

    Water and Feed Plants

    29 May to 17 Oct Dates as each sowing reaches this stage Optional · repeat every week

    Keep the compost evenly moist from 29th May. Once the first flowers open, feed with a high-potassium liquid fertiliser every 7 days through 17th October.

    • Hold off feeding until the first flowers open. Feeding too early encourages leaf growth at the expense of fruit.
  6. 06

    Harvest Chillies

    14 Jul to 17 Oct Dates as each sowing reaches this stage

    Cut fruits with scissors from 14th July. Pick them green or leave them to reach their mature colour. Flavour and heat depend on the variety. Keep picking through 17th October.

    • At the end of the season, pull up the whole plant and hang it upside down in a cool, dry place to ripen the remaining green chillies.

Suggested varieties

Popular varieties of Chilli Pepper to consider

Apache

A compact variety ideal for pots, producing small, hot red fruits that mature early in the UK season.

Cayenne

A classic long, thin chilli with medium heat, perfect for drying and using in sauces.

Jalapeño

A popular medium-hot chilli with thick walls, great for fresh eating or pickling.

Chilli Pepper guides by town

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