Aster Reine Marguerite

Hi
I just bought 3 pots of aster reine marguerite (white,pink and purple) from Home Depot (they still have them). I thought they are perennials because 5 years ago I bought Aster (dark purple) and it has been coming every year. I also bought Aster (pink) from Canadian Tires last year and this year it came back. But to my surprise, the new plants that I bought today, the label says they are Annual! I wish the label is wrong. What do you think? Are they Perennial or Annual. Is there are different kind of Aster? Thank you so much.