put it in a sieve basket on top of a pot of boiling water
Yes, it grows on top of the soil.
There is a top plant and then the cauliflower among the leaves, so it doesn't grow underground but on top. Cauliflower plants do send roots underground, but the flowers, the parts that are eaten, grow above ground.
When you serve it on the plate.
How do you imagine ANY plant can grow from top to bottom
Yes, I blanched some cauliflower and they ate it. I put it up in baggies and gave them a floret every other day. They had white tummies eating the cauliflower.
No that is really bad for you it will put weight on not loose it
the plural of cauliflower is cauliflower As in "I have tons of cauliflower'
you eat the top not the bottom tastes really good with cheese
No, the word cauliflower is singular only; to refer to multiples of the vegetable, you have one head of cauliflower or two heads of cauliflower, you have one floret of cauliflower or many florets of cauliflower, a fields of cauliflower or a pots of cauliflower.
It will stay fresh about a week, (assuming it was put in there fresh).