Atishoo! Tree pollen? You need a handkerchief tree
The Pocket Handkerchief Tree (otherwise known as the Dove Tree) Davidia involucrata was first discovered growing wild in China, towards the end of the nineteenth century. Seeds were sent back to the UK by Victorian plant hunter Ernest Wilson in 1901 and when it flowered in Britain for the first time, it caused such a stir that the leading nursery of the day (Veitch’s nursery of Chelsea and Exeter) could not keep up with the demand for plants.
One of the first Pocket Handkerchief Trees to be planted in Britain was at Plas Tan y Bwlch which is one of the many great gardens in the North Wales Festival of Gardens.