I purchased this Daylily 'Siloam Fairy Tale' at the Home Depot garden center last year. Actually, I bought two of them because they were on sale and had not yet bloomed and wanted to add to the collection a gardening friend had given me. I've blogged a lot about the pros of buying plants in your neighborhood big box garden centers but there are also cons.
Hibiscus trionum was introduced to the US from Southern Europe where it gained a foothold as a weed and as a garden plant, it is listed as a noxious weed by the USDA. One common name for this plant is 'Flower-of-an-hour because of the short-lived blooms.