When to plant Nigella in Glasgow

Nigella damascena

Nigella
Nigella · Nigella damascena

A hardy annual grown from direct sowing in the UK. It does best in open, sunny ground with free-draining soil. It often self-seeds if you leave some flower heads to mature.

45 cm · Full Sun · Moderate Water

Calibrated to Glasgow · last frost ≈ 25 Apr

Sow outdoors September to October, harvest June to August. Frost risk October to April.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow outdoorsNoNoNoNoNoNoNoNoYesYesNoNo
HarvestNoNoNoNoNoYesYesYesNoNoNoNo

Growing guide

What to do through the growing season

Change the guide to see different planting timelines and tips.

Sow once in free-draining soil for flowers next year. Protect young seedlings only when hard frost is due.

  1. 01

    Sow Seeds

    6 Sept to 4 Oct

    Sow thinly during 6th September - 4th October on finely raked, weed-free soil where the plants are to flower. Cover with . Keep the seedbed lightly moist until seedlings appear. This is one sowing, not a run of batches.

  2. 02

    Thin Seedlings

    4 Oct to 15 Nov Dates as each sowing reaches this stage

    Thin during 4th October - 15th November, leaving the strongest plants apart. Take out surplus seedlings carefully so nearby roots are not disturbed.

  3. 03

    Feed and Water

    6 Oct to 19 Sept 2027 Dates as each sowing reaches this stage

    From 6th October to 19th September 2027, water in dry spells once growth restarts. Cover young plants with fleece only if hard frost is due. Take it off in mild weather.

  4. 04

    Deadhead Flowers

    24 Apr to 29 Sept 2027 Dates as each sowing reaches this stage

    Flowers open next year, from 24th April 2027 through 29th September 2027. Pick and deadhead fading flowers. Leave a few heads if you want seed.

  5. 05

    Harvest Seed Heads

    13 Jun to 30 Aug 2027 Dates as each sowing reaches this stage

    Collect seed next year, from 13th June 2027 through 30th August 2027, once the heads are dry and papery. Hang them indoors to finish drying, then shake out the seed.

Suggested varieties

Popular varieties of Nigella to consider

Miss Jekyll

Classic blue flowers with finely cut foliage and a loose, airy habit.

Persian Jewels

Mixed colours on compact plants, useful for bedding and cutting.

Transformer

Grown more for the striped seed pods than the flowers, with a neat habit.

Nigella guides by town

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