On 26 Nov 2003 01:42:15 GMT, EROSPAM (formerly K30a)
wrote:

Two iris seeds took
root in the turf and now I have plants growing
there.

Just watch the roots of them, the can go thru the liner.

You can cover the edge with houseleeks, they will then work towards
the water and look nice. No roots to worry about and the birds and
animals don't seem to mind them