Yellow hibiscus blooms for many days

Though hibiscus , portulaca and other flowers are as colourful as roses, in most cases, the flower will bloom for only one day, and then the flower will wilt and die. On the other hand, a rose flower, like an orchid, marigold will last for many days, so these flowers are more costly compared to other flowers
However it appears that a new variety of hibiscus is being developed
The hibiscus flower is blooming very slowly, however flower is blooming for many days
It appears to be a new variety of hibiscus , which is not easily found in goa and elsewhere . More scientific information will be appreciated