Posted: 24/04/2015 at 21:11
They need to be planted out, Bf, they're just going to get lankier and lankier. 7C overnight will not hurt them.
You're going to have to bury them very deeply after taking off the branches and foliage up to the canopy. Take off any flower buds, too. Plenty more will come later. Let the plants put all their energy into establishing themselves for now.
I planted mine out today and took some photos. They will show what I mean about taking off branches and foliage up the canopy. All the stem that is buried will develop into root structure.