Well.....
When I checked "fragrant" in the flowers field, with only zone 5 checked, I got "no results".
Here is what I checked:
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Flowers: Fragrant
Here is what I got:
No results found. Your query may have been too specific. Try removing some of the options and try again.
Perhaps I'll do each of the specific fragrances one at a time.... If that doesn't work, I'll be back here.....