In previous homes I used oleander in 'problem' spots too. Worked great. I had heard it was poisonous, and I have a herd of pets, so worried for awhile, but they showed no interest.
Reading the first answer, Yikes! I now have morning glories, brugmansia, and starts of pinecone ginger everywhere. Thought I was going tropical, turns out I am making a toxic dump - albeit a very pretty one. I stay on top of picking up the brugmansia droppings, but here too, the animals show no interest.
Cheers,
Mike