Posted: 25/04/2013 at 22:40
Oh dear, we have exactly the same problem. My partner and I both work long hours, full time, so have very little time for weeding the ground elder. I would say that if it's only in one bed, get rid of it no matter the time it takes because it spreads VERY quickly elsewhere!
Roundup is okay but doesn't work quickly or 100%. The only effective (but time consuming and annoying) way I have found is to dig out all the roots. It really will grow from the tiniest bit of root so be thorough. They're quite easy to identify but I did mistake a baby tree paeonie for ground elder the other day and quickly replanted it!
If you need any moral support or advice, just let me know. We have ground elder throughout the front garden and around 3 of the 4 edges of the back garden (over 200ft in total!)