Butternut squash - mad idea?

[Ste `n` Mags]

Squashes don't need heat, they can go outside once the risk of frost has passed.

In the greenhouse, unless you do it by hand, they stand less chance of getting pollinated.

[Two_Sheds]

Squashes don't need heat, they can go outside once the risk of frost has passed.

??
they can go outside for sure, but need a long warm summer to ripen properly