On Monday, 1 June 2020 09:09:08 UTC+1, Tricky Dicky wrote:

NT:
Time gets rid of it. If you're in no rush, just forget it.

Dunno, neighbour of mine took some down a few years ago and you can still see all the marks. Might lend him my Karcher and see how it goes.

Richard

IME it takes about a year for the bulk of the stems to drop off. Bits remain for years more, but they do go. They're also friable after a year so I'd expect should be readily presure-off-able.


NT