They don't really need to be in a coldframe because they are quite hardy kymrob. If you have the room to put them out in the garden now then they would probably be better. Mine would be in their planting positions if I had the room.
During the winter they may start to look abit the worse for wear but as soon as the springtime comes the plants magically transform themselves into a bushy little plant and then there is no stopping them.
I grew mine underneath the fruit trees and they seemed to love the bit of shade and they lasted a lot longer than the ones in the sun.
Hope they do well for you
