Help with some bare root perennials

borgadr

I received some bareroot Astrantias and Hostas that were on a GW subscriber deal with Hayloft.  The Hostas each have a thick shoot and the Astrantias look completely dormant
I've potted them up in straight multipurpose compost (no grit/sand added, as I believe they like permanently damp conditions). 

I will plant them out in the garden in spring (the beds aren't ready yet) so they're staying in pots through the winter.  My question - should I just leave them outside through the winter?  At the moment they're in a sheltered semi-shaded spot against a wall of the house where they shouldn't get much frost.  I'm down in Kent where winters are very mild most years. I thought my greenhouse would be ready be now, but it's at least another month away..  there's the option of putting them in there hopefully this side of Christmas if that's needed.

Do you guys think they'll be alright potted up outside through the winter?  I'm not expecting much to happen before spring.

Fairygirl

Yes. Don't cosset them. 
They do like damper conditions, but they also need drainage. Not just a soggy site.   

borgadr

Excellent - thanks Fairygirl

Fairygirl

I should have said that I'm assuming they're decent enough sized plants. If they're tiny wee scraps, you might want to stick them under a bench/table or something, but I think where you have them sounds fine. 
I have loads of small plants under my bench - in two and three inch pots. Some aren't even as reliably hardy here as the ones you have [V. bonariensis for example ]   
They'll not be put in the greenhouse - they'll have to tough it out regardless of what the winter throws at them here. It makes the stronger plants too, for when you plant them out   

borgadr

They're a very decent size. To give you some idea, I ended up putting them each into 6-inch pots, which was about the smallest I could do without having to bunch up the roots.

Fairygirl

They should be fine then