Hardy hibiscus/rose mallow
I planted a rose mallow last summer (I think it was called cranberry crush) and it bloomed nicely until the frost, about early October. I then cut it back and covered it with a rose cone. I uncovered it today and it looks like all the growth is dead right back to the soil. It was pretty much burried all winter under a snow bank. Am I right in assuming its dead? I had some roses right next to it I also uncovered and they have survived fine. The tag claimed the hibiscus was hardy to zone 5. I'm debating weather or not to plant a new one this summer but ill put something else if it will just die again. I'm not too upset it didn't survive it only cost me around $16 but I was hoping it would over winter!