"Trent-Lion" wrote in message
...
In the GH I am restoring, I put some old paving bricks down to cover
the dirt floor before thinking about the potential weed problem. Is it
safe to use Roundup on the weeds that come up inside the GH

In a confined space like that, I would only apply Roundup with a brush
rather than spray. I think you might prefer a more permanent, non-chemical
solution.