Late winter
February
We had a colder than usual December and
January in 2009 so the snow
crocuses that are usually in bloom the last week in January didn't
arrive until early February. 
Twenty years ago I planted snow crocuses in the section of our lawn that gets the most sun. I kept adding to them for a few years and while most of those have died out very slowly, they left their children self seeded all over the garden. Most of the children have reverted to type and are either lavender or dark purple.
By February my winter-blooming hardy cyclamen had burst into bloom all over the yard. They all started from one plant on the kitchen side of the house and have now self seeded down the edge of our gravel driveway into the area across it and even all the way on the other end of the property out by the compost piles! Clearly the birds are doing their job.
Cyclamen coum
This clump showed up in the grass outside our dining room window with just 2 flowers a few years ago. It's steadily gotten bigger until it's this great champion. You can see that it's a shady area because there's a lot of moss in the lawn.
This clump is growing across the driveway in mulch. It only had a few flowers when I planted it 2 years ago. Clearly it's happy here and spreading rapidly.
The filbert trees come into bloom in February too. They look as if someone has come and hung tassels all over them.
For those of you not familiar with them Filberts are very close relatives to Hazelnuts.
March
By early March the standard crocuses are in bloom too.
And the little jonquils are just starting to open.
