Hey, BlueAlien! I got a bunch of results just by putting the word "ivy" in the search box that shows on the right side of the pop-down menu when you click on the word "Download" in the navbar at the top of the screen.
Looking through those, actual walls made of or covered in ivy are not that easy to find, but you have several choices of climbing plants that can be made to come up or down your walls nicely. I picked out some of the ones I thought looked nicest for you:
Wisteria
Climbing ivy converted from TS3
More ivy either
crawling up or
hanging down the wall.
Also, there looks to be some in this
garden set.
And like I said, you can always repeat the search I did to see if there's anything more, or maybe instead enter words like "vines," or click on the tags on some of the cc I've linked already.
Good luck!
*Ongoing TS2 informational projects (come on by to contribute, get info, or spectate!): (1) the
SimPE Preservation Project and (2)
Conflict Tracking for the 3t2 Traits Project Mods
*Need a Pescado mod? Use his
hack directory: in the first post, find the link for your latest EP, then go in hacks/