I tried baby roses in the house for years and they always died so when my grandmother gave me a pair(called "Toy Clown") I planted them outside. They have been thriving for over 30 years. They have become about 3 feet tall and almost as wide and have hundreds of blooms(all year round here.). The flowers are still baby but the color did change -- from white with a coral edge to solid coral. I do nothing for them. They get no aphids, no mildew, no blackspot. Unless you have a greenhouse maybe they just do better outside. Keep it alive until spring then put it outside.