"Steve Harris" wrote in message ...
In article
1g2vzo5.54uecywkqsn4N%00senetnospamtodayta@macunl imited.net,
(Jim W) wrote:

Ivy will ususally cause more damage to old soft lime mortar and/or red
victorian brick

There is such a wall near here. Some of it is bare while the rest is
covered with ivy. Recently, some of the ivy has been removed to reveal
brickwork (and mortar) in MUCH better condition than the long-term bare
area.

That has been my experience on our early C19 garden walls. Just have to watch it if it re starts on any walls where
bricks and mortar have perished because they have been exposed.

Rod