
Hi
Lots of those plants are dangerous to us so will be more so to dogs. It can be the seeds, leaves, roots or even the sap from certain plants that can have an effect. Some dogs wont touch the plants ,and others will dig or chew them like crazy. To be on the absolute safe side, it
is best to get rid of the plants.
Look for the list of plants poisonous or irritant to humans
and dogs to make doubly sure.
Also, not sure where you are , but there are 'hotspots ' for lungworm caused frm eating slugs, snails and fox poo so check that too!!
Good luck