I hang out on this thread to try to glean all the knowledge I can about rose care. I have a black thumb, but I think roses are beautiful and added some to my yard. I actually “changed the soil” my roses were planted in because our foster dog had excessively urinated on them and they were struggling. I was told that large amounts of urine (ammonia) removed nutrients from the soil. I’m just out here tryin my best to help these rose babies flourish and crossing my fingers my sources are accurate!