Hi annppayne, :D
Mine are the same, but I would hold off until the end of March.
Here in the mildish 8) south east that`s when I put mine out on our exposed plot. They need hardening off between now & then, I leave the coldframe lid up on mild nights. They may not grow very much at first but once the weather warms up they will romp away & I usually have flowers by May.
Adrian.