round up on garden
Thank you for the question. It depends on the product. "Round-up" is a brand name and may contain various pesticides all having different retention times. You must read the label it is the law! The label will tell you when you can plant back in the garden space.
For more information check http://www.roundup.com/smg/templates/index.jsp?pageUrl=rupProductLanding&itemId=cat50004&id=...
Thank you for contacting Extension.