Mandevilla, yellow leaves
I am overwintering my white mandevilla in the house. I live in Northern Michigan. I put it in the brightest window in the warmest room. I bought it last summer. I trimmed some of the tendrils and brought it in the house in October. It has been beautiful until a few days ago, though it does not bloom in the house. I water it maybe weekly and let it dry between waterings. Now it has some yellow leaves. I have read this is happens when it lacks sunshine. We don't get much sun here. Is there anything I should do for it? I really want to keep it alive until spring when I can take it back outside. It has grown long tendrils again. I have not fertilized since summer.