I garden here in Oregon, but I'm posing this question to help out my daughter who is living in L.A. She just moved to an apartment where she finally has a little landing where she can put a garden pot. She has no gardening experience at all -- this pot will be her first endeavor!

Anyway, she's pretty excited about the pot, and she'll be able to see it from her kitchen window too. She wants to plant a vine in it.

But what vine? She wanted bougainvillea, but we found that has thorns and is toxic. Mandevilla is toxic too. So what she needs is something that is (hopefully)...

evergreen
able to be left in a container
summer blooming in L.A.
nontoxic to pets (she has dogs)
no thorns (the dogs again)

I've been searching the Internet for something, but there are just too many specific requirements for me to figure out what the plant would be.

Can anyone help?