This is the only place that says Feb. 5 is national primrose day. This is what you get when you type "primrose day" into Google:
Primrose Day is the anniversary of the death of British statesman and prime minister Benjamin Disraeli, 1st Earl of Beaconsfield, on 19 April 1881. The primrose was his favourite flower and Queen Victoria would often send him bunches of them from Windsor and Osborne House.
