Time to transplant??

I have some swede,leeks,calabrese and sweetcorn hardening off at the mo. The sweede is 4-5" tall, the calabrese the same height, sweetcorn6" leeks 8". I was wondering when i can transplant these in to my plot as i dont want them to die after all my hard work.

I also have 3 well established courgette plants but someone said it was to early to plant these, is this correct?

Thanks for the help, its well needed.

I put my courgettes out today, planted them in compost bags that wree half full of nice black compost then the soil from our old compost heap which OH was transferring to my new pallet compost bins.  OH wanted to know why they were in bags, when I still have a half empty plot.

But by the time I've filled the rest of the plot up, there wouldn't have been room for the courgettes!!!!!

But I'm going to train them up canes like that lady in the Big Dig did.  she said the French do it that way, so I'll try it and see what happens

I've never transplanted swede..does anyone know if this works, have nt planted courgettes out yet maybe next week ,squash too. Leeks in a couple of weeks when they've thickened up more .

worked for me last year, even though you're not supposed to do it that way. we are giving it another go this year too.