Garlic and cold weather

[InfraDig]

We are told that garlic needs cold weather to make cloves. Does that mean that Spanish, Italian, French etc garlic are grown only at higher altitudes?
Thanks.

[InfraDig]

[historygardening]

i think you missing point. where is source of your info.

[InfraDig]

The source seems to be everywhere you look! For example, the RHS, Suttons Gardening Grow How, James Wong in the Guardian Sun 23 Feb 2020. Multiple sources mention the need of a chilling period of below 10deg C , vernalisation, to cause the formation of individual cloves, as opposed to one large clove of garlic rather like an onion. It could of course be another example of another gardening myth. That is what I am  interested in, hence my question.

[InfraDig]

As I wrote the word: myth, I remembered Robert Pavlis of Garden Myths. He has an interesting article "Does Garlic need frost before planting?". (He also has many other interesting articles!!)
Within this article he states "In warm climates a vernalisation period in the fridge should allow you to plant at any time". Thus he seems to accept that a vernalisation period is required, and points to studies which indicate a range of 20 to 30 days at between 5 to 7 deg C.
Maybe this is done when garlic is grown commercially in warm climates?

[Paulh]

"Hot" countries have cold enough winters, with frost temperatures in (say) December and January.