If you want to get some seakale in the wellington region you may be out of luck I have seldom seen any except once in Seatoun. However the council has planted a big display of colourfull curly kale at the bottom of Taranaki st as you drive past Rialto look to your right. Its tough and fibrous you are better off with silverbeet.
Peas, broadbeans, bok choy, silverbeet, beetroot, all brassicas, carrots, parsnips are all go at the moment.