When to plant out

They'll be fine in the greenhouse. If it were me I'd plant them out once the soil has warmed a little - anytime now. If we get more frosts you can always protect with some mulch.etc. but I've planted loads of things over the last few weeks and all are doing well.

Thanks! As they r young I was afraid to put them out but Ive got a few things to put out so mayb il start now on the weekend. :)

Harden off placed outside, cover if frost is forecast, plant out in permanent place in two or three weeks.

If it were me, I'd pot them on, leave them in a coldframe or in a sheltered place (with frost protection if necessary) then plant them out when they reach a better size - in well-nourished soil, deeply, as Clematis are greedy feeders and planting deeply is an insurance against wilt. I do think that with Clematis, they do better if they are grown on for a while.

I agree with Sprizhenry. Had a talk from Chris Cocks of Taylors Clematis nr Doncaster last Tuesday. He said the plants needed to be two years old and the roots to fill a 2 litre pot before planting out in the garden. If not they would just die as they are too small to survive and need protection. see www.taylorsclematis.co.uk for more info