Penstemons offer...10 for £10...how would I over-winter them?

Personally, I would not avail myself of this offer - unless you want to keep them in the greenhouse and cross your fingers. Keeping them indoors will most likely force them to grow when they would normally be resting during the winter.

That's what I thought Bamboo...why are they selling them at this time of year?

Maybe they bought in a lot to sell this year and got stuck with them .So now they are trying to shift them rather than having to nurse them through the winter? Which firm is selling them?

Someone called Hayloft Plants Andrew in Pershore. That did cross my mind as they're fairly cheap. They do say you can put them in the ground after 3-4 weeks of potting on ...it's just that I'd want to do that next year when I've sorted out some room!

i have overwintered many a penstemon cutting in the green house and on mild days i have put them out on the path. They dont seem to mind in the slightest. I also over winter larger ones in pots, some on the back path under the trees and some in the cold frame. they never seem to mind either. if you like the plants then i'd go for it.

Some of them look like laura, czar and amelia jane. i have these and they are really good.

Well I've plenty of room in the greenhouse...if they're hardy I suppose they would be ok. I'll show you pics of them in full flower next Spring!! Maybe....!!