Cypress Vine

We got a pack of Cypress Vine seeds in hopes of using these cheerful flowers as a fence cover. … Luckily I read how invasive they can become and decided to instead grow them outside my fence on a tomato cage.

Of the 12 seeds planted, 3 made it to be big, healthy vines. I was so happy to see that I had one of each color vine: red, white, and pink!

Now that growing season is over, and my cypress vine is clearly showing signs of cold weather distress, I see that the lower portion of the vine has turned woody. What a mess that would have been to clear from my fence!

Does anybody know of a pretty flowering vine that is safe for dogs and would be easy to clean from my fence every fall?