I'm trying to take care of three plants my sister have for 6-7 years now. She hardly takes care of them and lately they seem to look frail and almost dying. I noticed it since summer. Now that it's getting colder (kept them indoors now), they are getting worse. I don't know a lot about plants so I need help. If you'll ask me what kind they are, sadly I can't tell. Don't want them to die. I'll post pics and maybe some of you here can give me answers.