I'll second those deep purple petunias for fragrance Chantell. I never think to start them from seed but will buy a pot when I smell them in bloom.
There is an old time petunia here with tiny blooms that smells good also. Years ago they had pots of them around the town square. They were pretty and fragrant and came up in the sidewalk cracks for a few years after. Now I don't see those petunias any longer. Guess everyone got burned out on the volunteers. Kristi