I happened to look out at one of the spruce trees in my front garden
during a succession of wind gusts and there appeared to be smoke
billowing out. Of course it was just pollen but I'd never seen it like
that before. Graham

There was a spruce tree in our road (until someone cut it down). During
it's pollen season any cars left outside were covered in the stuff. It was
so bad that you had to wash the windows to be able to drive.

We see the same thing with other conifers, and our pine tree is
particularly 'impressive'. Not much fun for hay fever sufferers

Al.