Our native Bluebell (Hycinthoides non-scripta) is in flower already in the hedgerows. Typically I would expect to see them in late April/early May. I have yet to walk out to a Bluebell wood- it's possible that hedge populations are exposed to more sunlight which has bought them on sooner. After the cold winter spring has been notably warm and bright. Be interested to see if woodland Bluebells are similarly early.