By Caterbj
United Kingdom 
i have grown cauliflowers plants have grown very large but no sign of the flowers
On plant
cauliflowers
17 Jun, 2011
Answers
Most varieties won't start to curd until the nights get chilly in early fall, then it's a race with frost.
17 Jun, 2011
what variety have you grown, and when did you sow the seed?
17 Jun, 2011
Copy and paste the url below into your web browser for more info on growing cauliflowers
http://bit.ly/kl7ri8
Tugb. in the Uk cauliflower is grown as a summer vegetable not a winter one (unless you live in Cornwall)
18 Jun, 2011
Sorry! Ours never start to curd unless the nights are starting to get chilly (<10ยบ C) in November or December, then they curd no matter what size they are. I was expecting them to be grown in the UK by starting them in late spring, and harvesting in fall. I gotta watch those unfounded expectations!
Reading that cauliflower page you gave us, it is apparent that I have only been exposed to the autumn and winter varieties of cauliflower, here. No real surprises there--I suspect that the summer ones would cook before they curded here!
19 Jun, 2011
No worries Tugb.
19 Jun, 2011
Bulba and I have given up trying to grow cauliflowers they need a huge amount of feeding to produce a decent size curd and I think we are just too far north for them to get enough heat and sun.
17 Jun, 2011