🥦 Cauliflower 'All Year Round'

Sowing window (UK)	March to May
Minimum soil temperature	5°C at seed depth
Sowing depth	1 cm
Spacing	60 cm apart
Days to germination	7 days
Days to harvest	154 days
Sowing method	Start under cover, transplant out
Frost hardy	Yes
Sun	full-sun
Watering	high
Plant family	Brassicaceae

When should I sow Cauliflower 'All Year Round' in the UK?

In the UK, sow Cauliflower 'All Year Round' from March to May. It is normally started under cover and transplanted. Wait until the soil has reached 5°C at seed depth rather than going by the calendar - cauliflower will sit and rot in cold ground.

What soil temperature does Cauliflower 'All Year Round' need to germinate?

Cauliflower 'All Year Round' needs a minimum soil temperature of 5°C at seed depth to germinate reliably. Below that, germination is slow and patchy, and seed is more likely to rot than sprout. Measure at around 5cm down, in the morning, rather than trusting air temperature.

How deep and how far apart should I sow Cauliflower 'All Year Round'?

For Cauliflower 'All Year Round', sow it 1cm deep and space plants 60cm apart.

How long does Cauliflower 'All Year Round' take to grow?

Cauliflower 'All Year Round' takes roughly 154 days from sowing to harvest. Seed usually germinates in about 7 days.

Is Cauliflower 'All Year Round' frost hardy?

Yes. Cauliflower 'All Year Round' is frost hardy and will stand through UK frosts, so it can be left out over winter in most of the country.

Sowing data cross-checked against RHS growing guides and UK seed-merchant catalogues. Soil temperatures are the minimum for reliable germination, measured at seed depth.