This Twitter account is rather good and is well worth following. It is apparently the work of four women who are also putting together a book due out in September called 'Nature's Calendar'.
It shares ideas from a range of people and places, and would be a useful companion perhaps to Richard Mabey's 'Flora Britannica'. (see earlier blogpost on this book)
It is based on a Japanese concept of there being a whole range of seasons, each of which lasts just a few days at times.
The book comes out in September.
I would imagine that climate change is going to mess up these fine grained annual rhythms sadly...
