No longer sold here but here is the variety info...
Orientals have wider leaves and a later bloom date than asiatics, but your reward is the strong and spicy perfume. Orientals can have 3 to 12 large, open faced blossoms on each stem in shades of pink, white, yellow and red. They bloom from August through September here at this central Alberta, rural location. The most common of the Orientals is Star Gazer, truly a beauty to behold!
Orientals are borderline hardy here on the Prairies, and require extra help to make it through the often harsh winters, in most locations. They should be planted deeper, only in spring, and mulched heavily in the fall. Part shade is also preferred. They can also be grown and overwintered successfully in pots. Have a look at this very good article on overwintering orientals in Alberta.
Please note that I do not plant them in the ground due to their lack of hardiness and unreliable overwintering habit. Your results may vary!