'Vicky',

This site should be of help.

http://www.dgsgardening.btinternet.c...ound-elder.htm

Best to use Glysophate Pen to treat the elder in your rockery as that
enables you to carefully wet the leaves of the weed without
contaminating your other plants. It then kills the root of the weed
without having any adverse effect on your other plants or the soil.

More ideas:
http://www.au.gardenweb.com/forums/l...608381370.html

http://tinyurl.com/ytnny

http://tinyurl.com/28zsl

Best of luck if you have any time for weeding after reading all of this.

Regards,
Emrys Davies.



"Vicky" wrote in message
...
...is taking over my lawn along one side of my garden and has a liking
for
the rockery in my front garden too. How do I get rid of this stuff
without
having to pull it out every time I weed the rockery? Incidentally, I
have
quite a few plants and a couple of raspberry canes in said rockery and
I'm
keen to keep those.

Vicky