Plot

When to sow Cauliflower (winter / spring heading) in the UK

Cauliflower (winter / spring heading) is sown to the calendar rather than to the frost, so the window is much the same wherever you garden in the UK.

Family Brassicaceae · rotation group brassicas · Hard to grow

Sowing and harvest dates by region

Cauliflower (winter / spring heading) is grown to the calendar rather than to the frost, so the same dates apply across the whole UK and every region below reads the same. Where a plant’s timings do follow the frost, Plot shifts them from the Midlands and Lowland Wales baseline using Met Office average frost dates.

Where you areSow indoorsSow outdoorsPlant outHarvest
South West Coast and Cornwallearly May to late Maymid May to late Junelate June to early Augustlate January to late May
South Coast and Channelearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Greater London (Urban Heat Island)early May to late Maymid May to late Junelate June to early Augustlate January to late May
South East and Home Countiesearly May to late Maymid May to late Junelate June to early Augustlate January to late May
East Angliaearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Midlands and Lowland Walesearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Wales and West Coastearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Northern Englandearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Scotland Lowlands and Central Beltearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Scotland Highlands and Islandsearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Northern Irelandearly May to late Maymid May to late Junelate June to early Augustlate January to late May
Channel Islands and Isle of Manearly May to late Maymid May to late Junelate June to early Augustlate January to late May

Growing notes

Sow from late spring to early summer; these take six months or more and are cut from late winter into spring and even early summer, so they occupy the ground for a full year. Bend a leaf over developing curds to protect them from frost discolouration.

At a glance

Spacing
70 cm between plants
Row spacing
70 cm
Plants per m²
2
Days to maturity
300 days
Yield per plant
1 kg
Sun
Full
Frost tender
No
Grows in a container
Yes, 30 litres or more
Minimum soil depth
35 cm
Balcony rating
1 out of 5

What usually goes wrong

Companion planting

Grows well near

Keep away from

Related guides

Timings cross-checked against RHS guidance for cauliflower (winter / spring heading).