Yesterday I saw the first crocuses of the year- little yellow ones around a small tree in St Peter's Square in Hammersmith, near the border of Chiswick. They've been there for several years now and have been my own personal indicator of Imbolc. There are 4 buds showing, still tightly wrapped up, but should open up soon, probably on Thursday would be my guess. Daffodils are coming up as well; no buds as yet but well on track for St David's day. There will be purple and white ones as well, and around other trees, but it's always been those yellow ones there that come up first.