Your breeder should be able to guide you on the best ways to get the ears to stand up. When I was a kid, my parents would tape our GSD puppy ears. Your breeder should be a wealth of info.We have a GSD puppy who just turned 6 months. The tip of his one ear still doesn’t stand up. We do not want to do any medical intervention because it seems cruel to do something for an issue that is purely cosmetic. But has anyone had a dogs ear finally stand up at 7-8 months?
If this is a pet shop puppy or a back yard breeder dog, you might try calling your local GSD club and get some tips. However, if the proper breeding is not there, you may be out of luck.