Astrantia 'Hadspen's Blood' is a great plant in the garden. (Someone once misheard me and said 'Husband's Blood? That's a strange name for a plant!)
I made the mistake of adding two stems of it to a vase of mixed flowers - and it smells awful! I had to remove it. The tiny flowers of gypsophila smell just as bad - but the larger flowered annual gypsophila 'Covent Garden' has no scent and is lovely in a vase.
The most delicious smells just now are honeysuckle, night scented stock - just a sprig or two will scent a room, and petunia 'Sky Blue' which smells like jasmine.