With me, I've found cockers and nice gardens do not mix
Luckily Lottie is not a great digger....OK, so there are a couple of holes in the lawn
but she loves nothing more than trampling all over the borders, under shrubs and eating plant labels
She brings half the mud from the garden into the house on her paws and leaves/twigs etc. on her coat :-
The only way to deal with it is to section off part of your garden if possible or watch her at all times
Not easy I know:
Failing this, I'm afraid you'll just have to make sure all your poisonous plants are removed :-