I have got some dried willowherb still in the polytunnel, they love those.
I also had some nettles, but they got a wee bit damp, so the male lambs/tup got them instead. They fought over them!
saw some snowdrop (just the green top though) poking through this weekend - so maybe there is spring in the air.... wishful thinking. last year we had our last bad snow/hail storm on March 31 - my first lambing day!