every year I think I have lost them but they show in mid may. so no worries yet.

Yeah they're a fairly late flowering Primula...at least June time. They'll be up in a bit, my candelabra prims have shot up this week in the sun.

Thank you for your comments. I will keep a watch for them
Might buy some more just in case.

I have found a small speck of green so they are just starting to show. this was in the warm part of the garden. the coldest area not a sign.