According to the BBC, the late spring means hayfever is only just becoming a problem, and that it will be a shorter sneezing season than usual.
The picture is catkins on a Pussy willow, as tree pollen is a problem as well as grass pollen. Bumble bees have been busy collecting the pollen from these catkins for the last couple of weeks.

Great News… thanks! “Hay fever sufferers may breathe easier this year as a late spring means there is less pollen than usual in the air, experts say.” thanks again