Apparently there are! Why did I not know about these earlier? Radhika, the owner and tender of this garden, has a whole walkway lined with these deliciously fragrant hostas, making the scent more noticeable.
One has to lean in to get a full heavenly whiff, as the smell does not seem to carry very far.
Radhika does not know what variety of hosta this is, but apparently all fragrant hosta cultivars come from the same granddaddy, Hosta plantaginea. Often called an 'August lily', this hosta blooms later in the summer than other kinds and has large 6" long white flowers. It can also continuously produce new leaves during summer as opposed to sending out all of its leaves in one spring flush like most other types.
The flowers of the unknown hosta in this garden are about 3" or 4" long, and the buds have lavender tips.
According to Tom Carlson with Hostas Direct, deer prefer to eat the fragrant varieties of hostas before the non-fragrant ones - apparently they are sweeter. (Wonder who did the taste test to determine that?)
The bees seemed to love these hostas. They are reputed to be a magnet for hummingbirds as well.
For more information on fragrant hostas and a list of available cultivars, Tony Avent of the renowned Plant Delights Nursery has a great fragrant hosta article. There are varieties with purple flowers, as well as ones with variegated leaves.