Hibiscus flower ID needed
I bought this Hibiscus plant from Home Depot with red flowers about a year ago. After planting it in ground, at the front yard, the plant started to look very bad so I moved it to a container with planting soil at the back yard. It was still going worse, it was bound for the graveyard. I decided to prune all the low branches, leaving only the 3 upper ones. The Hibiscus like it a lot better, it started to grow and looking better right away. But now, the flowers color changed to pink. I don't know what happened to it!
While moving the plant I lost the tag that came with it. Please, can somebody tell me what Hibiscus plant I have?