"Carol" wrote ..

Here's my problem. I have a pond lined in butyl and the butyl liner comes
out and over a low bank (about four inches wide and 2 inches high) round
the pond. I want to cover the butyl so that it's invisible, but I cannot
use any ground cover plants that spread by rooting stolons because if I do
that they will eventually pierce the butyl below the water level and drain
my pond. Any suggestions for ground cover plants I can use?

Butyl rubber is very tough stuff and is not polythene, that is a different
product altogether. The better Butyl is guaranteed for 50 years and is used
for canals etc. Very few plants will pierce it and certainly normal low
growing ground cover stuff won't.

--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK