When to put herbs outside?

Hi,

I'm quickly running out of greenhouse space. I've transplanted parsley, thyme, sage & mint seedling plants into pots today. Would it be ok to leave them in the garden or do I need to protect them yet?

 

Well they are all hardy plants, as long as the weather stays warm I'd suggest taking advantage and hardening them off.
Hopefully we wont get any cold nights from now on so I'd guess they will be ok, just keep an eye open if it get really cold again.

 

@pete Thanks for the advice.