[shay]

Would I be right in thinking prime polytunnel occupants are:

Cucumber
Peppers
Tomatoes
Aubergines

Anything else that would have a preference for being indoors (as indoors as a polytunnel can be) instead of outside?

[peapod]

sweet potatoes

[hindy]

Chillis, Melons.

[mumofstig]

In the spring you can grow 'early' anything you fancy, eg salads, french beans, potatoes, peas.........polytunnel gives you about a month's advantage over growing outside, and these early crops are usually 'over and out' before the summer veg need to go in. Result

[GrannieAnnie]

I've grown potatoes, carrots, perpetual spinach, runner and broad beans and peas in mine.  Usually when I've run out of outside space and had plants left over.  Don't forget your salad stuff!!!