I have seen both the white and magenta coloured clovers in bloom since May. In addition to some spring excursions, Edith also mentions seeing them on her walk, 'through Catherine-de-Barnes, Hampton in Arden, Bickenhill and Elmdon' on 25 June 1906.
I have not yet seen a four leaf clover though. Have you?
The background frame is based on an e-processed blue brolly fabric.